chore: update version number to 0.1.46

VERSION

@@ -1 +1 @@
-0.1.40
+0.1.46

android/app/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools">
   <uses-permission android:name="android.permission.INTERNET"/>
+  <uses-permission android:name="android.permission.CAMERA"/>
   <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
   <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="32"/>
@@ -21,6 +22,12 @@
         <action android:name="android.intent.action.MAIN"/>
         <category android:name="android.intent.category.LAUNCHER"/>
       </intent-filter>
+      <intent-filter>
+        <action android:name="android.intent.action.VIEW"/>
+        <category android:name="android.intent.category.DEFAULT"/>
+        <category android:name="android.intent.category.BROWSABLE"/>
+        <data android:scheme="bulwarkmobile"/>
+      </intent-filter>
     </activity>
     <service android:name=".BulwarkMessagingService" android:exported="false">
       <intent-filter>

app.config.js

@@ -46,7 +46,18 @@ module.exports = {
     web: {
       favicon: './assets/favicon.png',
     },
-    plugins: ['expo-secure-store', '@react-native-community/datetimepicker', 'expo-localization'],
+    plugins: [
+      'expo-secure-store',
+      '@react-native-community/datetimepicker',
+      'expo-localization',
+      [
+        'expo-camera',
+        {
+          cameraPermission:
+            'Bulwark Mail uses the camera to scan sign-in QR codes shown in webmail.',
+        },
+      ],
+    ],
     extra: {
       commit: COMMIT,
     },

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "bulwark-mobile",
-  "version": "0.1.40",
+  "version": "0.1.46",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "bulwark-mobile",
-      "version": "0.1.40",
+      "version": "0.1.46",
       "license": "AGPL-3.0-only",
       "dependencies": {
         "@react-native-async-storage/async-storage": "2.2.0",
@@ -17,6 +17,7 @@
         "@react-navigation/native-stack": "^7.14.10",
         "date-fns": "^4.1.0",
         "expo": "~54.0.33",
+        "expo-camera": "~17.0.10",
         "expo-document-picker": "~14.0.8",
         "expo-file-system": "~19.0.21",
         "expo-image-picker": "~17.0.10",
@@ -5211,6 +5212,26 @@
         }
       }
     },
+    "node_modules/expo-camera": {
+      "version": "17.0.10",
+      "resolved": "https://registry.npmjs.org/expo-camera/-/expo-camera-17.0.10.tgz",
+      "integrity": "sha512-w1RBw83mAGVk4BPPwNrCZyFop0VLiVSRE3c2V9onWbdFwonpRhzmB4drygG8YOUTl1H3wQvALJHyMPTbgsK1Jg==",
+      "license": "MIT",
+      "dependencies": {
+        "invariant": "^2.2.4"
+      },
+      "peerDependencies": {
+        "expo": "*",
+        "react": "*",
+        "react-native": "*",
+        "react-native-web": "*"
+      },
+      "peerDependenciesMeta": {
+        "react-native-web": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/expo-constants": {
       "version": "18.0.13",
       "resolved": "https://registry.npmjs.org/expo-constants/-/expo-constants-18.0.13.tgz",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "bulwark-mobile",
-  "version": "0.1.40",
+  "version": "0.1.46",
   "license": "AGPL-3.0-only",
   "main": "index.ts",
   "scripts": {
@@ -23,6 +23,7 @@
     "@react-navigation/native-stack": "^7.14.10",
     "date-fns": "^4.1.0",
     "expo": "~54.0.33",
+    "expo-camera": "~17.0.10",
     "expo-document-picker": "~14.0.8",
     "expo-file-system": "~19.0.21",
     "expo-image-picker": "~17.0.10",

src/components/EmailBodyView.tsx

@@ -3,7 +3,7 @@ import { View, StyleSheet, Linking, Platform, Text, Pressable } from 'react-nati
 import { WebView, type WebViewMessageEvent } from 'react-native-webview';
 import { Image as ImageIcon, ShieldCheck } from 'lucide-react-native';
 import type { Email } from '../api/types';
-import { wrapEmailHtml, wrapPlainTextEmail, plainTextToSafeHtml, extractCidRefs, hasRemoteContent, hasMeaningfulHtmlBody } from '../lib/email-html';
+import { wrapEmailHtml, wrapPlainTextEmail, plainTextToSafeHtml, extractCidRefs, hasRemoteContent, hasMeaningfulHtmlBody, hasNativeDarkMode } from '../lib/email-html';
 import { jmapClient } from '../api/jmap-client';
 import { useSettingsStore } from '../stores/settings-store';
 import { useContactsStore } from '../stores/contacts-store';
@@ -27,6 +27,10 @@ function arrayBufferToBase64(buffer: ArrayBuffer): string {
 interface EmailBodyViewProps {
   email: Email;
   senderEmail?: string;
+  // The body is a native WebView, which on Android swallows horizontal touches
+  // before the surrounding pager can see them. We detect a clear horizontal
+  // swipe inside the page and report it here so the pager can change messages.
+  onSwipe?: (direction: 'prev' | 'next') => void;
 }
 
 function extractHtmlBody(email: Email): string | null {
@@ -45,29 +49,164 @@ function extractTextBody(email: Email): string | null {
   return null;
 }
 
+// Dark-mode re-inversion, mirroring the webmail's handleIframeLoad pass. The
+// body's `filter: invert(1)` flips colored emoji (yellow smiley -> blue, red
+// heart -> cyan) and stylesheet-defined background images, which the static CSS
+// attribute selectors can't reach. This walks the DOM once and wraps/re-inverts
+// those so they keep their original colors. Only injected when inversion is on.
+const DARK_REINVERT_SCRIPT = `
+(function () {
+  if (document.__rnDarkInvertDone) return;
+  var doc = document;
+  var win = window;
+  if (!doc.body) return;
+  document.__rnDarkInvertDone = true;
+
+  // Re-invert elements with stylesheet-defined background images (CSS attribute
+  // selectors only catch inline styles, not rules that survive in <style>).
+  doc.body.querySelectorAll('*').forEach(function (el) {
+    // Skip elements already handled by CSS attribute selectors.
+    if (el.style.backgroundImage || el.style.background ||
+        el.hasAttribute('background') || el.hasAttribute('bgcolor')) return;
+    // Skip leaf media elements (already re-inverted by CSS).
+    var tag = el.tagName;
+    if (['IMG','VIDEO','SVG','CANVAS','OBJECT','EMBED'].indexOf(tag) !== -1) return;
+    var computed = win.getComputedStyle(el);
+    if (computed.backgroundImage && computed.backgroundImage !== 'none') {
+      // Only re-invert if this container doesn't have media children.
+      if (!el.querySelector('img, video, svg, canvas, object, embed')) {
+        el.style.filter = 'invert(1) hue-rotate(180deg)';
+      }
+    }
+  });
+
+  // Re-invert emoji glyphs so they keep their original colors. Wrap each emoji
+  // run in a span that re-inverts. Only act when the ancestor invert depth is
+  // odd - emojis inside a double-inverted bgcolor container already render at
+  // their original colors.
+  var emojiRe;
+  try {
+    emojiRe = new RegExp('\\\\p{RGI_Emoji}', 'gv');
+  } catch (e) {
+    emojiRe = /\\p{Extended_Pictographic}(?:\\uFE0F)?(?:\\u200D\\p{Extended_Pictographic}(?:\\uFE0F)?)*/gu;
+  }
+  var emojiTestRe = /\\p{Extended_Pictographic}/u;
+  var SKIP_TAGS = { SCRIPT: 1, STYLE: 1, NOSCRIPT: 1, TEXTAREA: 1, IFRAME: 1 };
+
+  function isOddInvertDepth(start) {
+    var count = 0;
+    var n = start;
+    while (n) {
+      if (n === doc.body) { count++; break; }
+      var cs = win.getComputedStyle(n);
+      if (cs.filter && cs.filter.indexOf('invert') !== -1) count++;
+      n = n.parentElement;
+    }
+    return count % 2 === 1;
+  }
+
+  var walker = doc.createTreeWalker(doc.body, NodeFilter.SHOW_TEXT, {
+    acceptNode: function (node) {
+      var p = node.parentElement;
+      while (p) {
+        if (SKIP_TAGS[p.tagName]) return NodeFilter.FILTER_REJECT;
+        p = p.parentElement;
+      }
+      return emojiTestRe.test(node.nodeValue || '')
+        ? NodeFilter.FILTER_ACCEPT
+        : NodeFilter.FILTER_REJECT;
+    }
+  });
+
+  var emojiTextNodes = [];
+  var cur;
+  while ((cur = walker.nextNode())) emojiTextNodes.push(cur);
+
+  emojiTextNodes.forEach(function (textNode) {
+    var parent = textNode.parentElement;
+    if (!parent || !isOddInvertDepth(parent)) return;
+    var text = textNode.nodeValue || '';
+    emojiRe.lastIndex = 0;
+    var frag = doc.createDocumentFragment();
+    var lastIndex = 0;
+    var m;
+    while ((m = emojiRe.exec(text)) !== null) {
+      if (m.index > lastIndex) {
+        frag.appendChild(doc.createTextNode(text.slice(lastIndex, m.index)));
+      }
+      var span = doc.createElement('span');
+      span.style.cssText = 'filter:invert(1) hue-rotate(180deg)';
+      span.textContent = m[0];
+      frag.appendChild(span);
+      lastIndex = m.index + m[0].length;
+    }
+    if (lastIndex === 0) return;
+    if (lastIndex < text.length) {
+      frag.appendChild(doc.createTextNode(text.slice(lastIndex)));
+    }
+    parent.replaceChild(frag, textNode);
+  });
+})();
+`;
+
 const HEIGHT_REPORTER = `
 (function () {
   // One-time: wrap body contents in a block-level div we can measure reliably.
   // body.scrollHeight on Android WebView is pinned to the container viewport
   // height, so we can't trust it. A dedicated wrapper gives a deterministic
   // bounding box.
+  var wrapperEl = null;
   function ensureWrapper() {
     var b = document.body;
     if (!b) return null;
+    if (wrapperEl && wrapperEl.isConnected) return wrapperEl;
     var wrap = document.getElementById('__rn_email_body_wrap__');
     if (!wrap) {
       wrap = document.createElement('div');
       wrap.id = '__rn_email_body_wrap__';
       wrap.style.display = 'block';
       wrap.style.width = '100%';
+      wrap.style.transformOrigin = 'top left';
       while (b.firstChild) wrap.appendChild(b.firstChild);
       b.appendChild(wrap);
     }
+    wrapperEl = wrap;
     return wrap;
   }
+  // The width available for the email content (body content-box).
+  function availWidth() {
+    var b = document.body;
+    var cs = window.getComputedStyle(b);
+    var padL = parseFloat(cs.paddingLeft) || 0;
+    var padR = parseFloat(cs.paddingRight) || 0;
+    return b.clientWidth - padL - padR;
+  }
+  // Shrink-to-fit: emails authored at a fixed width (e.g. 600px tables) overflow
+  // a phone viewport and force horizontal scrolling. Lay the content out at its
+  // natural width, then scale the whole block down so its widest element fits
+  // the screen — the way native mail clients do. No sideways scrolling.
+  function fitToWidth(w) {
+    if (!w) return;
+    var avail = availWidth();
+    if (avail <= 0) return;
+    // Reset to full width so wrapping content reports its true overflow extent
+    // (the widest unbreakable element) rather than a previously-scaled box.
+    w.style.width = '100%';
+    var content = w.scrollWidth;
+    if (content > avail + 1) {
+      var scale = avail / content;
+      w.style.width = content + 'px';
+      w.style.transform = 'scale(' + scale + ')';
+    } else {
+      w.style.transform = 'none';
+    }
+  }
   function measure() {
     var w = ensureWrapper();
     if (!w) return 0;
+    fitToWidth(w);
+    // getBoundingClientRect reflects the applied transform, so r.height is the
+    // already-scaled visual height of the content.
     var r = w.getBoundingClientRect();
     var b = document.body;
     var cs = window.getComputedStyle(b);
@@ -117,7 +256,16 @@ const HEIGHT_REPORTER = `
     if (document.body) ro.observe(document.body);
   } catch (e) {}
   try {
-    var mo = new MutationObserver(report);
+    var mo = new MutationObserver(function (records) {
+      for (var i = 0; i < records.length; i++) {
+        // Ignore the style mutations fitToWidth() applies to the wrapper itself,
+        // otherwise scaling would re-trigger a measure and loop indefinitely.
+        var rec = records[i];
+        if (rec.target === wrapperEl && rec.type === 'attributes') continue;
+        report();
+        return;
+      }
+    });
     if (document.body) mo.observe(document.body, { childList: true, subtree: true, attributes: true, characterData: true });
   } catch (e) {}
   try {
@@ -130,7 +278,37 @@ const HEIGHT_REPORTER = `
 })();
 `;
 
-export default function EmailBodyView({ email, senderEmail }: EmailBodyViewProps) {
+// Detect a clear horizontal flick inside the WebView and report it. Uses
+// capture-phase, passive listeners so it never blocks vertical scrolling, text
+// selection, or link taps — it only reacts to a quick, horizontal-dominant
+// gesture on release. Guarded so re-injection (onLoadEnd) is a no-op.
+const SWIPE_DETECTOR = `
+(function () {
+  if (window.__rnSwipeInit) return;
+  window.__rnSwipeInit = true;
+  var x0 = 0, y0 = 0, t0 = 0, tracking = false;
+  document.addEventListener('touchstart', function (e) {
+    if (e.touches.length !== 1) { tracking = false; return; }
+    var t = e.touches[0];
+    x0 = t.clientX; y0 = t.clientY; t0 = Date.now(); tracking = true;
+  }, { passive: true, capture: true });
+  document.addEventListener('touchend', function (e) {
+    if (!tracking) return;
+    tracking = false;
+    var t = e.changedTouches[0];
+    if (!t) return;
+    var dx = t.clientX - x0, dy = t.clientY - y0, dt = Date.now() - t0;
+    if (dt < 700 && Math.abs(dx) > 55 && Math.abs(dx) > Math.abs(dy) * 1.8) {
+      if (window.ReactNativeWebView) {
+        window.ReactNativeWebView.postMessage(JSON.stringify({ type: 'swipe', dir: dx < 0 ? 'next' : 'prev' }));
+      }
+    }
+  }, { passive: true, capture: true });
+  true;
+})();
+`;
+
+export default function EmailBodyView({ email, senderEmail, onSwipe }: EmailBodyViewProps) {
   const c = useColors();
   const styles = React.useMemo(() => makeStyles(c), [c]);
   const externalContentPolicy = useSettingsStore((s) => s.externalContentPolicy);
@@ -273,8 +451,31 @@ export default function EmailBodyView({ email, senderEmail }: EmailBodyViewProps
     };
   }, [rawHtml, text, email.preview, shouldBlock, cidMap, renderAsDark]);
 
+  // Inversion is applied for HTML bodies in dark mode unless the email ships its
+  // own dark-mode CSS. When it's on, prepend the DOM re-inversion pass (emoji +
+  // stylesheet backgrounds) so it runs before the height reporter measures.
+  const applyInversion =
+    !!rawHtml && renderAsDark && !hasNativeDarkMode(rawHtml);
+  const injectedJs = React.useMemo(
+    () =>
+      (applyInversion ? DARK_REINVERT_SCRIPT + HEIGHT_REPORTER : HEIGHT_REPORTER)
+      + SWIPE_DETECTOR,
+    [applyInversion],
+  );
+
   const onMessage = (e: WebViewMessageEvent) => {
-    const parsed = parseInt(e.nativeEvent.data, 10);
+    const data = e.nativeEvent.data;
+    // Swipe messages arrive as JSON; the height reporter posts a bare number.
+    if (data.charCodeAt(0) === 123 /* '{' */) {
+      try {
+        const msg = JSON.parse(data);
+        if (msg.type === 'swipe' && (msg.dir === 'prev' || msg.dir === 'next')) {
+          onSwipe?.(msg.dir);
+        }
+      } catch { /* ignore malformed */ }
+      return;
+    }
+    const parsed = parseInt(data, 10);
     if (Number.isNaN(parsed) || parsed <= 0) return;
     setHeight((prev) => (Math.abs(parsed - prev) < 2 ? prev : parsed));
   };
@@ -316,13 +517,15 @@ export default function EmailBodyView({ email, senderEmail }: EmailBodyViewProps
           originWhitelist={['about:blank']}
           source={source}
           javaScriptEnabled
-          injectedJavaScript={HEIGHT_REPORTER}
+          injectedJavaScript={injectedJs}
           onMessage={onMessage}
           onLoadEnd={() => {
             // Re-inject after load to cover Android cases where
-            // `injectedJavaScript` runs too early to see the final layout.
+            // `injectedJavaScript` runs too early to see the final layout. The
+            // re-inversion pass guards itself (__rnDarkInvertDone) so running it
+            // again here is a no-op once the body has been processed.
             setTimeout(() => {
-              webviewRef.current?.injectJavaScript(HEIGHT_REPORTER);
+              webviewRef.current?.injectJavaScript(injectedJs);
             }, 50);
           }}
           scrollEnabled={false}

src/components/QrScanModal.tsx

@@ -0,0 +1,124 @@
+import React from 'react';
+import { View, Text, Pressable, StyleSheet, Modal, Platform } from 'react-native';
+import { SafeAreaView } from 'react-native-safe-area-context';
+import { CameraView, useCameraPermissions, type BarcodeScanningResult } from 'expo-camera';
+import { X } from 'lucide-react-native';
+import { spacing, radius, typography, type ThemePalette } from '../theme/tokens';
+import { useColors } from '../theme/colors';
+import Button from './Button';
+
+interface QrScanModalProps {
+  visible: boolean;
+  onClose: () => void;
+  // Fires once with the raw decoded QR string. The parent is responsible for
+  // closing the modal and interpreting the payload.
+  onScanned: (data: string) => void;
+}
+
+export function QrScanModal({ visible, onClose, onScanned }: QrScanModalProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+  const [permission, requestPermission] = useCameraPermissions();
+  // Guards against the camera firing onBarcodeScanned dozens of times for the
+  // same code before the modal tears down.
+  const handled = React.useRef(false);
+
+  React.useEffect(() => {
+    if (visible) handled.current = false;
+  }, [visible]);
+
+  const handleBarcode = React.useCallback(
+    (result: BarcodeScanningResult) => {
+      if (handled.current) return;
+      handled.current = true;
+      onScanned(result.data);
+    },
+    [onScanned],
+  );
+
+  return (
+    <Modal visible={visible} animationType="slide" onRequestClose={onClose} statusBarTranslucent>
+      <View style={styles.container}>
+        {permission?.granted ? (
+          <CameraView
+            style={StyleSheet.absoluteFill}
+            facing="back"
+            barcodeScannerSettings={{ barcodeTypes: ['qr'] }}
+            onBarcodeScanned={handleBarcode}
+          />
+        ) : null}
+
+        <SafeAreaView style={styles.overlay}>
+          <View style={styles.header}>
+            <Pressable onPress={onClose} hitSlop={10} style={styles.closeButton}>
+              <X size={24} color="#ffffff" />
+            </Pressable>
+            <Text style={styles.title}>Scan QR code</Text>
+            <View style={styles.closeButton} />
+          </View>
+
+          {permission?.granted ? (
+            <View style={styles.frameWrap}>
+              <View style={styles.frame} />
+              <Text style={styles.hint}>
+                Point your camera at the QR code shown on the webmail settings screen.
+              </Text>
+            </View>
+          ) : (
+            <View style={styles.permissionWrap}>
+              <Text style={styles.permissionText}>
+                {permission && !permission.canAskAgain
+                  ? 'Camera access is disabled. Enable it in Settings to scan a sign-in QR code.'
+                  : 'Bulwark Mail needs camera access to scan a sign-in QR code.'}
+              </Text>
+              <Button variant="default" size="md" onPress={() => void requestPermission()}>
+                Allow camera access
+              </Button>
+            </View>
+          )}
+        </SafeAreaView>
+      </View>
+    </Modal>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    container: { flex: 1, backgroundColor: '#000000' },
+    overlay: { flex: 1, justifyContent: 'flex-start' },
+    header: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'space-between',
+      paddingHorizontal: spacing.lg,
+      paddingTop: Platform.OS === 'android' ? spacing.xl : spacing.sm,
+      paddingBottom: spacing.md,
+    },
+    closeButton: { width: 32, height: 32, alignItems: 'center', justifyContent: 'center' },
+    title: { ...typography.h3, color: '#ffffff' },
+    frameWrap: { flex: 1, alignItems: 'center', justifyContent: 'center', gap: spacing.lg },
+    frame: {
+      width: 240,
+      height: 240,
+      borderWidth: 3,
+      borderColor: '#ffffff',
+      borderRadius: radius.lg,
+      backgroundColor: 'transparent',
+    },
+    hint: {
+      ...typography.caption,
+      color: '#ffffff',
+      textAlign: 'center',
+      paddingHorizontal: spacing.xxl,
+    },
+    permissionWrap: {
+      flex: 1,
+      alignItems: 'center',
+      justifyContent: 'center',
+      gap: spacing.lg,
+      paddingHorizontal: spacing.xxl,
+      backgroundColor: c.background,
+    },
+    permissionText: { ...typography.body, color: c.text, textAlign: 'center' },
+  });
+}

src/components/calendar/EventCard.tsx

@@ -79,7 +79,8 @@ function makeStyles(c: ThemePalette) {
   card: {
     flexDirection: 'row',
     backgroundColor: c.card,
-    borderRadius: radius.lg,
+    borderTopRightRadius: radius.lg,
+    borderBottomRightRadius: radius.lg,
     marginBottom: spacing.sm,
     overflow: 'hidden',
     borderWidth: 1,

src/components/contacts/ContactActivity.tsx

@@ -8,8 +8,9 @@ import type { ContactCard, Email, CalendarEvent } from '../../api/types';
 import type { RootStackParamList } from '../../navigation/types';
 import { getEmails, queryEmailsByFilter } from '../../api/email';
 import { useCalendarStore } from '../../stores/calendar-store';
+import { getEventColor } from '../../lib/calendar-utils';
 import SenderAvatar from '../SenderAvatar';
-import { radius, spacing, typography, type ThemePalette } from '../../theme/tokens';
+import { radius, spacing, typography, componentSizes, type ThemePalette } from '../../theme/tokens';
 import { useColors } from '../../theme/colors';
 
 const EMAIL_LIMIT = 5;
@@ -87,6 +88,7 @@ export function ContactActivity({ contact }: Props) {
   const styles = React.useMemo(() => makeStyles(c), [c]);
   const navigation = useNavigation<Nav>();
   const calendarEvents = useCalendarStore((s) => s.events);
+  const calendars = useCalendarStore((s) => s.calendars);
 
   const addresses = React.useMemo(() => getContactEmails(contact), [contact]);
   const addressKey = addresses.join(',');
@@ -145,74 +147,85 @@ export function ContactActivity({ contact }: Props) {
     <View style={styles.wrap}>
       <View style={styles.section}>
         <View style={styles.sectionHeader}>
-          <MailIcon size={14} color={c.primary} />
-          <Text style={styles.sectionTitle}>Recent emails</Text>
-        </View>
-        {emailsLoading ? (
-          <View style={styles.loading}>
-            <ActivityIndicator size="small" color={c.primary} />
+          <View style={styles.sectionIcon}>
+            <MailIcon size={16} color={c.textMuted} />
           </View>
-        ) : emailsError ? (
-          <Text style={styles.emptyText}>Couldn't load emails.</Text>
-        ) : !emails || emails.length === 0 ? (
-          <Text style={styles.emptyText}>No emails with this contact.</Text>
-        ) : (
-          emails.map((email) => {
-            const sender = email.from?.[0];
-            const senderName = sender?.name || sender?.email || 'Unknown';
-            return (
-              <Pressable
-                key={email.id}
-                onPress={() =>
-                  navigation.navigate('EmailThread', {
-                    emailId: email.id,
-                    threadId: email.threadId,
-                    subject: email.subject ?? undefined,
-                  })
-                }
-                style={({ pressed }) => [styles.row, pressed && styles.rowPressed]}
-              >
-                <SenderAvatar name={senderName} email={sender?.email} size={32} />
-                <View style={styles.rowContent}>
-                  <View style={styles.rowTop}>
-                    <Text style={styles.rowSender} numberOfLines={1}>{senderName}</Text>
-                    <Text style={styles.rowDate}>{formatRelativeDate(email.receivedAt)}</Text>
+          <Text style={styles.sectionLabel}>Recent emails</Text>
+        </View>
+        <View style={styles.sectionBody}>
+          {emailsLoading ? (
+            <View style={styles.loading}>
+              <ActivityIndicator size="small" color={c.primary} />
+            </View>
+          ) : emailsError ? (
+            <Text style={styles.emptyText}>Couldn't load emails.</Text>
+          ) : !emails || emails.length === 0 ? (
+            <Text style={styles.emptyText}>No emails with this contact.</Text>
+          ) : (
+            emails.map((email) => {
+              const sender = email.from?.[0];
+              const senderName = sender?.name || sender?.email || 'Unknown';
+              return (
+                <Pressable
+                  key={email.id}
+                  onPress={() =>
+                    navigation.navigate('EmailThread', {
+                      emailId: email.id,
+                      threadId: email.threadId,
+                      subject: email.subject ?? undefined,
+                    })
+                  }
+                  style={({ pressed }) => [styles.row, pressed && styles.rowPressed]}
+                >
+                  <SenderAvatar name={senderName} email={sender?.email} size={32} />
+                  <View style={styles.rowContent}>
+                    <View style={styles.rowTop}>
+                      <Text style={styles.rowSender} numberOfLines={1}>{senderName}</Text>
+                      <Text style={styles.rowDate}>{formatRelativeDate(email.receivedAt)}</Text>
+                    </View>
+                    <Text style={styles.rowSubject} numberOfLines={1}>
+                      {email.subject || '(no subject)'}
+                    </Text>
+                    {email.preview ? (
+                      <Text style={styles.rowPreview} numberOfLines={1}>{email.preview}</Text>
+                    ) : null}
                   </View>
-                  <Text style={styles.rowSubject} numberOfLines={1}>
-                    {email.subject || '(no subject)'}
-                  </Text>
-                  {email.preview ? (
-                    <Text style={styles.rowPreview} numberOfLines={1}>{email.preview}</Text>
-                  ) : null}
-                </View>
-              </Pressable>
-            );
-          })
-        )}
+                </Pressable>
+              );
+            })
+          )}
+        </View>
       </View>
 
       <View style={styles.section}>
         <View style={styles.sectionHeader}>
-          <CalendarDays size={14} color={c.primary} />
-          <Text style={styles.sectionTitle}>Upcoming events</Text>
+          <View style={styles.sectionIcon}>
+            <CalendarDays size={16} color={c.textMuted} />
+          </View>
+          <Text style={styles.sectionLabel}>Upcoming events</Text>
         </View>
-        {upcomingEvents.length === 0 ? (
-          <Text style={styles.emptyText}>No upcoming events.</Text>
-        ) : (
-          upcomingEvents.map((event) => (
-            <View key={event.id} style={styles.eventRow}>
-              <Text style={styles.eventTime}>{formatEventTime(event)}</Text>
-              <View style={styles.eventInfo}>
-                <Text style={styles.eventTitle} numberOfLines={1}>
-                  {event.title || '(no title)'}
-                </Text>
-                <Text style={styles.eventDate}>
-                  {formatRelativeDate(event.utcStart || event.start)}
-                </Text>
+        <View style={styles.sectionBody}>
+          {upcomingEvents.length === 0 ? (
+            <Text style={styles.emptyText}>No upcoming events.</Text>
+          ) : (
+            upcomingEvents.map((event) => (
+              <View key={event.id} style={styles.eventRow}>
+                <View
+                  style={[styles.eventDot, { backgroundColor: getEventColor(event, calendars) }]}
+                />
+                <Text style={styles.eventTime}>{formatEventTime(event)}</Text>
+                <View style={styles.eventInfo}>
+                  <Text style={styles.eventTitle} numberOfLines={1}>
+                    {event.title || '(no title)'}
+                  </Text>
+                  <Text style={styles.eventDate}>
+                    {formatRelativeDate(event.utcStart || event.start)}
+                  </Text>
+                </View>
               </View>
-            </View>
-          ))
-        )}
+            ))
+          )}
+        </View>
       </View>
     </View>
   );
@@ -220,18 +233,18 @@ export function ContactActivity({ contact }: Props) {
 
 function makeStyles(c: ThemePalette) {
   return StyleSheet.create({
-  wrap: { gap: spacing.md, paddingHorizontal: spacing.lg, marginBottom: spacing.lg },
-  section: {
-    backgroundColor: c.card,
-    borderRadius: radius.sm,
-    paddingHorizontal: spacing.md,
-    paddingVertical: spacing.sm,
-    gap: spacing.sm,
-    borderLeftWidth: 3,
-    borderLeftColor: c.primary,
+  wrap: { gap: spacing.lg },
+  section: { gap: spacing.sm },
+  sectionHeader: { flexDirection: 'row', alignItems: 'center', gap: spacing.sm },
+  sectionIcon: { width: 16 },
+  sectionLabel: {
+    ...typography.bodyMedium,
+    color: c.textSecondary,
+    textTransform: 'uppercase',
+    fontSize: 11,
+    letterSpacing: 0.6,
   },
-  sectionHeader: { flexDirection: 'row', alignItems: 'center', gap: spacing.xs },
-  sectionTitle: { ...typography.bodySemibold, color: c.text },
+  sectionBody: { paddingLeft: spacing.lg + spacing.xs, gap: spacing.xs },
   loading: { paddingVertical: spacing.sm, alignItems: 'flex-start' },
   emptyText: { ...typography.caption, color: c.textMuted },
 
@@ -251,10 +264,16 @@ function makeStyles(c: ThemePalette) {
   rowPreview: { ...typography.caption, color: c.textMuted },
 
   eventRow: { flexDirection: 'row', gap: spacing.sm, alignItems: 'baseline', paddingVertical: 4 },
+  eventDot: {
+    width: componentSizes.eventDot,
+    height: componentSizes.eventDot,
+    borderRadius: componentSizes.eventDot / 2,
+    alignSelf: 'center',
+  },
   eventTime: {
     ...typography.caption,
     color: c.textMuted,
-    width: 64,
+    width: 52,
   },
   eventInfo: { flex: 1, minWidth: 0 },
   eventTitle: { ...typography.body, color: c.text },

src/components/contacts/TagAssignSheet.tsx

@@ -23,7 +23,12 @@ export default function TagAssignSheet({
   const c = useColors();
   const styles = React.useMemo(() => makeStyles(c), [c]);
   const insets = useSafeAreaInsets();
-  const keywords = useContactsStore(selectKeywordsUsed);
+  // Subscribe to the stable `contacts` array and derive the keyword list in a
+  // memo. Passing `selectKeywordsUsed` straight to the store would return a
+  // fresh array on every call, which trips useSyncExternalStore's snapshot
+  // check and spins into an infinite render loop.
+  const contacts = useContactsStore((s) => s.contacts);
+  const keywords = React.useMemo(() => selectKeywordsUsed(contacts), [contacts]);
 
   const [input, setInput] = React.useState('');
 

src/components/settings/ContactsSettings.tsx

@@ -22,7 +22,14 @@ export function ContactsSettings() {
   const groupByLetter = useSettingsStore((s) => s.groupContactsByLetter);
   const setGroupByLetter = useSettingsStore((s) => s.setGroupContactsByLetter);
   const contacts = useContactsStore((s) => s.contacts);
-  const books = useContactsStore(selectAddressBooksWithCount);
+  const addressBooks = useContactsStore((s) => s.addressBooks);
+  // Derive in a memo from stable store fields. Subscribing with
+  // `selectAddressBooksWithCount` directly returns a new array each call and
+  // sends useSyncExternalStore into an infinite render loop.
+  const books = React.useMemo(
+    () => selectAddressBooksWithCount(addressBooks, contacts),
+    [addressBooks, contacts],
+  );
   const fetchAddressBooks = useContactsStore((s) => s.fetchAddressBooks);
   const fetchContacts = useContactsStore((s) => s.fetchContacts);
   const createAddressBook = useContactsStore((s) => s.createAddressBook);

src/components/settings/LayoutSettings.tsx

@@ -1,10 +1,18 @@
 import React, { useEffect } from 'react';
 import { View, Text, StyleSheet } from 'react-native';
-import { ArrowRight, ArrowLeft } from 'lucide-react-native';
-import { SettingsSection, RadioGroup } from './settings-section';
+import { ArrowRight, ArrowLeft, MoveVertical } from 'lucide-react-native';
+import { SettingsSection, RadioGroup, Select } from './settings-section';
 import { spacing, typography, type ThemePalette } from '../../theme/tokens';
 import { useColors } from '../../theme/colors';
-import { useSettingsStore, type SwipeAction, type SwipeMode } from '../../stores/settings-store';
+import {
+  useSettingsStore,
+  normalizeBottomQuickActions,
+  REPLY_QUICK_ACTIONS,
+  ALL_QUICK_ACTIONS,
+  type SwipeAction,
+  type SwipeMode,
+  type QuickAction,
+} from '../../stores/settings-store';
 
 const SWIPE_OPTIONS: { value: SwipeAction; label: string }[] = [
   { value: 'none',    label: 'None' },
@@ -22,6 +30,24 @@ const SWIPE_MODE_OPTIONS: { value: SwipeMode; label: string }[] = [
   { value: 'reveal',  label: 'Reveal (swipe, then tap)' },
 ];
 
+const QUICK_ACTION_LABELS: Record<QuickAction, string> = {
+  reply: 'Reply',
+  replyAll: 'Reply All',
+  forward: 'Forward',
+  delete: 'Delete',
+  archive: 'Archive',
+  markUnread: 'Mark Read/Unread',
+  star: 'Star',
+  move: 'Move to folder',
+  spam: 'Spam',
+  tag: 'Tag',
+};
+
+const QUICK_ACTION_OPTIONS = ALL_QUICK_ACTIONS.map((value) => ({
+  value,
+  label: QUICK_ACTION_LABELS[value],
+}));
+
 export function LayoutSettings() {
   const c = useColors();
   const styles = React.useMemo(() => makeStyles(c), [c]);
@@ -31,11 +57,27 @@ export function LayoutSettings() {
   const setSwipeRightAction = useSettingsStore((s) => s.setSwipeRightAction);
   const swipeMode = useSettingsStore((s) => s.swipeMode);
   const setSwipeMode = useSettingsStore((s) => s.setSwipeMode);
+  const bottomQuickActionsRaw = useSettingsStore((s) => s.bottomQuickActions);
+  const update = useSettingsStore((s) => s.updateSetting);
   const hydrated = useSettingsStore((s) => s.hydrated);
   const hydrate = useSettingsStore((s) => s.hydrate);
 
   useEffect(() => { if (!hydrated) void hydrate(); }, [hydrated, hydrate]);
 
+  const bottomActions = normalizeBottomQuickActions(bottomQuickActionsRaw);
+  // Pick an action for a bar slot. If the chosen action already occupies
+  // another slot, swap the two so the three slots stay unique.
+  const setQuickActionSlot = (index: number, value: QuickAction) => {
+    const next = [...bottomActions];
+    const existing = next.indexOf(value);
+    if (existing !== -1 && existing !== index) {
+      next[existing] = next[index];
+    }
+    next[index] = value;
+    update('bottomQuickActions', next);
+  };
+  const relocated = REPLY_QUICK_ACTIONS.filter((a) => !bottomActions.includes(a));
+
   return (
     <SettingsSection title="Layout" description="Tune the email list interactions for mobile.">
       <View style={{ gap: spacing.sm }}>
@@ -81,6 +123,34 @@ export function LayoutSettings() {
         />
       </View>
 
+      <View style={{ gap: spacing.sm, marginTop: spacing.lg }}>
+        <View style={styles.row}>
+          <MoveVertical size={14} color={c.mutedForeground} />
+          <Text style={styles.rowLabel}>Reader quick actions</Text>
+        </View>
+        <Text style={styles.rowDescription}>
+          The three buttons shown between Prev/Next at the bottom of an open
+          email. Defaults to Reply, Reply All and Forward.
+        </Text>
+        {bottomActions.map((action, index) => (
+          <View key={index} style={styles.slotRow}>
+            <Text style={styles.slotLabel}>Slot {index + 1}</Text>
+            <Select
+              value={action}
+              onChange={(v) => setQuickActionSlot(index, v as QuickAction)}
+              options={QUICK_ACTION_OPTIONS}
+            />
+          </View>
+        ))}
+        {relocated.length > 0 && (
+          <Text style={styles.rowDescription}>
+            {relocated.map((a) => QUICK_ACTION_LABELS[a]).join(', ')}
+            {relocated.length === 1 ? ' is' : ' are'} moved to the top toolbar so
+            you can still use {relocated.length === 1 ? 'it' : 'them'}.
+          </Text>
+        )}
+      </View>
+
     </SettingsSection>
   );
 }
@@ -90,5 +160,13 @@ function makeStyles(c: ThemePalette) {
   row: { flexDirection: 'row', alignItems: 'center', gap: 6 },
   rowLabel: { ...typography.bodyMedium, color: c.text },
   rowDescription: { ...typography.caption, color: c.mutedForeground },
+  slotRow: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'space-between',
+    gap: spacing.md,
+    marginTop: spacing.xs,
+  },
+  slotLabel: { ...typography.body, color: c.text },
 });
 }

src/lib/oauth.ts

@@ -123,6 +123,90 @@ export async function runWebmailHandoff(webmailUrl: string): Promise<HandoffResu
   throw new HandoffError(`Unknown sign-in flow: ${flow ?? 'missing'}`);
 }
 
+// QR login payloads. A QR scanned on the login screen either bootstraps the
+// server URL for the normal webmail handoff (`connect`), or carries a one-time
+// cross-device pairing code minted by an already-signed-in webmail (`pair`).
+// The payload never contains credentials — the `pair` code is redeemed for
+// tokens over the network, once.
+export type QrLoginPayload =
+  | { kind: 'connect'; webmailUrl: string }
+  | { kind: 'pair'; webmailUrl: string; code: string };
+
+export function parseQrLoginPayload(raw: string): QrLoginPayload | null {
+  const trimmed = raw.trim();
+
+  // Custom scheme: bulwarkmail://connect?server=... | bulwarkmail://pair?server=...&code=...
+  const match = /^bulwarkmail:\/\/(connect|pair)\?(.*)$/i.exec(trimmed);
+  if (match) {
+    const kind = match[1].toLowerCase();
+    const params = new URLSearchParams(match[2]);
+    const server = params.get('server');
+    if (!server || !/^https?:\/\//i.test(server)) return null;
+    if (kind === 'pair') {
+      const code = params.get('code');
+      if (!code) return null;
+      return { kind: 'pair', webmailUrl: server, code };
+    }
+    return { kind: 'connect', webmailUrl: server };
+  }
+
+  // A bare https URL is treated as a server-bootstrap target so admins can
+  // hand out a plain webmail URL QR without the custom-scheme wrapper.
+  if (/^https?:\/\//i.test(trimmed)) {
+    return { kind: 'connect', webmailUrl: trimmed };
+  }
+
+  return null;
+}
+
+// Cross-device pairing redemption. Posts the scanned code to the webmail that
+// minted it and maps the token bundle into the same shape the in-browser OAuth
+// handoff produces, so the caller can reuse the existing connectWithOAuth path.
+export async function redeemPairingCode(webmailUrl: string, code: string): Promise<HandoffResult> {
+  const base = webmailUrl.replace(/\/+$/, '');
+  let response: Response;
+  try {
+    response = await secureFetch(`${base}/api/auth/pair/redeem`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
+      body: JSON.stringify({ pairing_code: code }),
+    });
+  } catch {
+    throw new HandoffError('Could not reach the server to complete pairing');
+  }
+
+  if (!response.ok) {
+    // The code was unknown, already used, or expired (server returns 400) —
+    // or something else went wrong. Either way the user needs a fresh QR.
+    throw new HandoffError('Pairing code is invalid or has expired');
+  }
+
+  const data = (await response.json()) as {
+    server_url?: string;
+    access_token?: string;
+    refresh_token?: string;
+    expires_in?: number;
+    token_endpoint?: string;
+    client_id?: string;
+  };
+
+  if (!data.server_url || !data.access_token || !data.token_endpoint || !data.client_id) {
+    throw new HandoffError('Pairing response missing token material');
+  }
+
+  return {
+    flow: 'oauth',
+    serverUrl: data.server_url,
+    tokens: {
+      accessToken: data.access_token,
+      refreshToken: data.refresh_token ?? undefined,
+      expiresAt: data.expires_in ? Date.now() + data.expires_in * 1000 : undefined,
+      tokenEndpoint: data.token_endpoint,
+      clientId: data.client_id,
+    },
+  };
+}
+
 // OAuth refresh — exchanges the refresh token at the original token endpoint
 // for a new access token. Returns the updated bundle so the caller can
 // persist it.

src/screens/EmailListScreen.tsx

@@ -593,7 +593,7 @@ export default function EmailListScreen({ onEmailPress, onComposePress }: EmailL
           <Pressable onPress={() => setDrawerOpen(true)} style={styles.headerButton}>
             <Menu size={20} color={c.textMuted} />
           </Pressable>
-          <Text style={styles.headerTitle}>{currentMailbox?.name ?? 'Inbox'}</Text>
+          <Text style={styles.headerTitle} numberOfLines={1}>{currentMailbox?.name ?? 'Inbox'}</Text>
           <View style={{ flex: 1 }} />
           <Pressable
             onPress={() => { void handleImport(); }}
@@ -1075,7 +1075,7 @@ function makeStyles(c: ThemePalette) {
     alignItems: 'center', justifyContent: 'center',
     borderRadius: radius.full,
   },
-  headerTitle: { ...typography.h3, color: c.text, flex: 1 }, // text-lg font-semibold
+  headerTitle: { ...typography.h3, color: c.text, flexShrink: 1 }, // text-lg font-semibold
   headerLogo: {
     width: 28,
     height: 28,

src/screens/EmailThreadScreen.tsx

@@ -1,8 +1,9 @@
 import React from 'react';
 import {
   View, Text, StyleSheet, ScrollView, Pressable, ActivityIndicator,
-  Modal, useWindowDimensions, Animated, Easing, Alert,
+  Modal, useWindowDimensions, Animated, Easing, Alert, FlatList,
 } from 'react-native';
+import type { NativeSyntheticEvent, NativeScrollEvent } from 'react-native';
 import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context';
 import type { NativeStackScreenProps } from '@react-navigation/native-stack';
 import {
@@ -18,7 +19,12 @@ import { CalendarInvitationBanner } from '../components/email/CalendarInvitation
 import SenderAvatar from '../components/SenderAvatar';
 import { MoveSheet } from '../components/MoveSheet';
 import { useEmailStore } from '../stores/email-store';
-import { useSettingsStore } from '../stores/settings-store';
+import {
+  useSettingsStore,
+  normalizeBottomQuickActions,
+  REPLY_QUICK_ACTIONS,
+  type QuickAction,
+} from '../stores/settings-store';
 import { setEmailKeywords } from '../api/email';
 import { shareEmailEml, shareAttachment, downloadAttachment } from '../lib/email-export';
 import { useKeywordsStore, keywordToken, type KeywordDef } from '../stores/keywords-store';
@@ -54,7 +60,11 @@ function plainTextBody(email: Email): string {
 export default function EmailThreadScreen({ route, navigation }: Props) {
   const c = useColors();
   const styles = React.useMemo(() => makeStyles(c), [c]);
-  const { emailId, subject: subjectParam, jmapAccountId } = route.params;
+  const { jmapAccountId } = route.params;
+  // The displayed email is tracked in local state (not a route param) so that
+  // swiping / Prev-Next can switch messages in place without remounting the
+  // screen — which is what produced the loading flash on every change.
+  const [activeEmailId, setActiveEmailId] = React.useState(route.params.emailId);
   const insets = useSafeAreaInsets();
   const { width: windowWidth } = useWindowDimensions();
   const getEmailDetail = useEmailStore((s) => s.getEmailDetail);
@@ -66,40 +76,107 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
   const currentMailboxId = useEmailStore((s) => s.currentMailboxId);
   const emails = useEmailStore((s) => s.emails);
 
-  const currentIndex = emails.findIndex((e) => e.id === emailId);
+  const currentIndex = emails.findIndex((e) => e.id === activeEmailId);
   const prevEmail = currentIndex > 0 ? emails[currentIndex - 1] : null;
   const nextEmail = currentIndex >= 0 && currentIndex < emails.length - 1 ? emails[currentIndex + 1] : null;
-  const goToEmail = (target: { id: string; threadId: string; subject?: string }) => {
-    navigation.replace('EmailThread', {
-      emailId: target.id,
-      threadId: target.threadId,
-      subject: target.subject ?? '',
-    });
-  };
 
-  const [email, setEmail] = React.useState<Email | null>(null);
-  const [loading, setLoading] = React.useState(true);
   const [error, setError] = React.useState<string | null>(null);
   const [moreMenuOpen, setMoreMenuOpen] = React.useState(false);
   const [moveMenuOpen, setMoveMenuOpen] = React.useState(false);
   const [tagMenuOpen, setTagMenuOpen] = React.useState(false);
-  const [attachmentsExpanded, setAttachmentsExpanded] = React.useState(false);
   const [downloadingBlobId, setDownloadingBlobId] = React.useState<string | null>(null);
 
+  // In-memory cache of fetched message details keyed by id. This is the single
+  // source of truth for every rendered pane: the active message *and* its
+  // prefetched neighbours all read their detail from here, so a swipe lands on
+  // ready content with no spinner and no late content-swap. `cacheVersion` is
+  // bumped whenever an entry changes so the panes re-render.
+  const detailCache = React.useRef(new Map<string, Email>()).current;
+  const [cacheVersion, setCacheVersion] = React.useState(0);
+  const bumpCache = React.useCallback(() => setCacheVersion((v) => v + 1), []);
+  const email = React.useMemo(
+    () => detailCache.get(activeEmailId) ?? null,
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+    [activeEmailId, cacheVersion, detailCache],
+  );
+
+  // --- Pager -------------------------------------------------------------
+  // The pager is a horizontal, page-snapping FlatList over the mailbox's
+  // `emails`. Native scroll provides the swipe + snap (and plays nicely with
+  // each pane's vertical body scroll); Prev/Next scroll programmatically. When
+  // scrolling settles, the centred page's id becomes `activeEmailId`, which is
+  // what the toolbar and action handlers operate on.
+  const listRef = React.useRef<FlatList<Email>>(null);
+  // The page to open on mount — the entry point arrives as a route param, so
+  // capture its index once.
+  const initialIndexRef = React.useRef(
+    Math.max(0, emails.findIndex((e) => e.id === route.params.emailId)),
+  );
+
+  // Coalesced detail fetch: stores the result in the shared cache and bumps the
+  // version so every mounted pane (and the toolbar) re-reads it. Concurrent
+  // calls for the same id share a single in-flight request.
+  const inFlight = React.useRef(new Map<string, Promise<Email | null>>()).current;
+  const ensureDetail = React.useCallback((id: string): Promise<Email | null> => {
+    const pending = inFlight.get(id);
+    if (pending) return pending;
+    const p = getEmailDetail(id, jmapAccountId)
+      .then((fetched) => { detailCache.set(id, fetched); bumpCache(); return fetched; })
+      .catch(() => detailCache.get(id) ?? null)
+      .finally(() => { inFlight.delete(id); });
+    inFlight.set(id, p);
+    return p;
+  }, [getEmailDetail, jmapAccountId, detailCache, bumpCache, inFlight]);
+
+  // Slide to a page by index and reflect it in the toolbar immediately; a swipe
+  // that settles on the same page confirms the same id via onMomentumEnd.
+  const goToIndex = React.useCallback((index: number) => {
+    if (index < 0 || index >= emails.length) return;
+    listRef.current?.scrollToOffset({ offset: index * windowWidth, animated: true });
+    const target = emails[index];
+    if (target) setActiveEmailId(target.id);
+  }, [emails, windowWidth]);
+
+  // Adopt the centred page as the active message once a swipe settles.
+  const onMomentumEnd = React.useCallback((e: NativeSyntheticEvent<NativeScrollEvent>) => {
+    const index = Math.round(e.nativeEvent.contentOffset.x / windowWidth);
+    const target = emails[index];
+    if (target && target.id !== activeEmailId) setActiveEmailId(target.id);
+  }, [emails, windowWidth, activeEmailId]);
+
+  // Page offsets are in window-width units, so a rotation / resize invalidates
+  // the scroll position — re-centre the active page after the width changes.
+  React.useLayoutEffect(() => {
+    const index = emails.findIndex((e) => e.id === activeEmailId);
+    if (index >= 0) listRef.current?.scrollToOffset({ offset: index * windowWidth, animated: false });
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [windowWidth]);
+
   const mailAttachmentAction = useSettingsStore((s) => s.mailAttachmentAction);
   const attachmentPosition = useSettingsStore((s) => s.attachmentPosition);
   const markAsReadDelay = useSettingsStore((s) => s.markAsReadDelay);
   const hideInlineImageAttachments = useSettingsStore((s) => s.hideInlineImageAttachments);
+  const bottomQuickActionsRaw = useSettingsStore((s) => s.bottomQuickActions);
+  const bottomActions = React.useMemo(
+    () => normalizeBottomQuickActions(bottomQuickActionsRaw),
+    [bottomQuickActionsRaw],
+  );
+  // Any reply-family action the user pulled out of the bottom bar is surfaced
+  // in the top toolbar so it stays reachable.
+  const relocatedActions = React.useMemo(
+    () => REPLY_QUICK_ACTIONS.filter((a) => !bottomActions.includes(a)),
+    [bottomActions],
+  );
 
   const onPressAttachment = React.useCallback(
-    async (blobId: string, name: string | undefined, type: string | undefined) => {
+    async (target: Email, blobId: string, name: string | undefined, type: string | undefined) => {
       if (downloadingBlobId) return;
       setDownloadingBlobId(blobId);
       try {
         if (mailAttachmentAction === 'download') {
-          await downloadAttachment(blobId, name, type, email);
+          await downloadAttachment(blobId, name, type, target);
         } else {
-          await shareAttachment(blobId, name, type, email);
+          await shareAttachment(blobId, name, type, target);
         }
       } catch (e) {
         Alert.alert('Download failed', e instanceof Error ? e.message : String(e));
@@ -107,66 +184,8 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
         setDownloadingBlobId(null);
       }
     },
-    [downloadingBlobId, mailAttachmentAction, email],
+    [downloadingBlobId, mailAttachmentAction],
   );
-
-  const renderAttachments = () => {
-    const all = email?.attachments;
-    if (!all || all.length === 0) return null;
-    // hideInlineImageAttachments: drop chips for images already shown inline
-    // in the body (any image attachment with a cid:). Non-image inline
-    // attachments stay visible because the user wouldn't see them otherwise.
-    const atts = hideInlineImageAttachments
-      ? all.filter((att) => !(att.cid && (att.type ?? '').startsWith('image/')))
-      : all;
-    if (atts.length === 0) return null;
-    const visible = attachmentsExpanded ? atts : atts.slice(0, 3);
-    return (
-      <View style={styles.attachmentsBlock}>
-        <View style={styles.attachmentsRow}>
-          {visible.map((att, idx) => {
-            const isDownloading = downloadingBlobId === att.blobId;
-            return (
-              <Pressable
-                key={att.blobId ?? idx}
-                style={({ pressed }) => [
-                  styles.attachmentChip,
-                  pressed && styles.attachmentChipPressed,
-                ]}
-                onPress={() => onPressAttachment(att.blobId, att.name, att.type)}
-                disabled={!!downloadingBlobId}
-              >
-                {isDownloading ? (
-                  <ActivityIndicator size="small" color={c.textMuted} />
-                ) : (
-                  <Paperclip size={14} color={c.textMuted} />
-                )}
-                <Text style={styles.attachmentName} numberOfLines={1}>
-                  {att.name || 'attachment'}
-                </Text>
-                <Text style={styles.attachmentSize}>{formatSize(att.size)}</Text>
-                <Download size={14} color={c.textMuted} />
-              </Pressable>
-            );
-          })}
-        </View>
-        {atts.length > 3 && (
-          <Pressable
-            onPress={() => setAttachmentsExpanded((v) => !v)}
-            style={({ pressed }) => [
-              styles.attachmentsToggle,
-              pressed && styles.attachmentsTogglePressed,
-            ]}
-            hitSlop={6}
-          >
-            <Text style={styles.attachmentsToggleText}>
-              {attachmentsExpanded ? 'Show less' : `Show all (${atts.length})`}
-            </Text>
-          </Pressable>
-        )}
-      </View>
-    );
-  };
   const keywordDefs = useKeywordsStore((s) => s.keywords);
   const hydrateKeywords = useKeywordsStore((s) => s.hydrate);
   const keywordsHydrated = useKeywordsStore((s) => s.hydrated);
@@ -175,35 +194,34 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
   React.useEffect(() => {
     let cancelled = false;
     let readTimer: ReturnType<typeof setTimeout> | null = null;
-    setLoading(true);
+    // Refresh the active message — a cached copy (the pane may have fetched it,
+    // or it was visited before) renders immediately while this lands. Then mark
+    // it read per the user's delay. The pane itself fetches its own detail, so
+    // ensureDetail here usually rides the same in-flight request.
     setError(null);
     void (async () => {
-      try {
-        const fetched = await getEmailDetail(emailId, jmapAccountId);
-        if (cancelled) return;
-        setEmail(fetched);
-        if (fetched && !fetched.keywords?.$seen) {
-          if (markAsReadDelay > 0) {
-            readTimer = setTimeout(() => {
-              if (!cancelled) void markRead(emailId, jmapAccountId);
-            }, markAsReadDelay);
-          } else {
-            void markRead(emailId, jmapAccountId);
-          }
+      const fetched = await ensureDetail(activeEmailId);
+      if (cancelled) return;
+      if (!fetched) {
+        // Only surface an error if there's nothing cached to show.
+        if (!detailCache.has(activeEmailId)) setError('Failed to load email');
+        return;
+      }
+      if (!fetched.keywords?.$seen) {
+        if (markAsReadDelay > 0) {
+          readTimer = setTimeout(() => {
+            if (!cancelled) void markRead(activeEmailId, jmapAccountId);
+          }, markAsReadDelay);
+        } else {
+          void markRead(activeEmailId, jmapAccountId);
         }
-      } catch (e) {
-        if (!cancelled) {
-          setError(e instanceof Error ? e.message : 'Failed to load email');
-        }
-      } finally {
-        if (!cancelled) setLoading(false);
       }
     })();
     return () => {
       cancelled = true;
       if (readTimer) clearTimeout(readTimer);
     };
-  }, [emailId, jmapAccountId, getEmailDetail, markRead, markAsReadDelay]);
+  }, [activeEmailId, ensureDetail, markRead, markAsReadDelay, jmapAccountId, detailCache]);
 
   const starred = !!email?.keywords?.$flagged;
   const unread = !!email && !email.keywords?.$seen;
@@ -222,8 +240,13 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
   );
   const isInJunk = !!(junkMailbox && email?.mailboxIds?.[junkMailbox.id]);
 
-  const updateLocalKeywords = (next: Record<string, boolean>) => {
-    setEmail((prev) => (prev ? { ...prev, keywords: next } : prev));
+  // Optimistically write a message's keywords into the cache (the single source
+  // of truth for every pane) and bump the version so the panes re-render.
+  const updateLocalKeywords = (id: string, next: Record<string, boolean>) => {
+    const prev = detailCache.get(id);
+    if (!prev) return;
+    detailCache.set(id, { ...prev, keywords: next });
+    bumpCache();
   };
 
   const onToggleKeyword = (token: string) => {
@@ -231,28 +254,32 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
     const next = { ...email.keywords };
     if (next[token]) delete next[token];
     else next[token] = true;
-    updateLocalKeywords(next);
+    updateLocalKeywords(email.id, next);
     void setEmailKeywords(email.id, next);
   };
 
-  const onToggleStar = () => {
-    if (!email) return;
-    const next = { ...email.keywords };
-    if (starred) delete next.$flagged;
+  // Toggle the star on a specific message — used both by the toolbar (current
+  // message) and by each pane's own subject star.
+  const toggleStarFor = React.useCallback((target: Email) => {
+    const next = { ...target.keywords };
+    if (next.$flagged) delete next.$flagged;
     else next.$flagged = true;
-    updateLocalKeywords(next);
-    void setEmailKeywords(email.id, next);
-  };
+    const prev = detailCache.get(target.id);
+    if (prev) { detailCache.set(target.id, { ...prev, keywords: next }); bumpCache(); }
+    void setEmailKeywords(target.id, next);
+  }, [detailCache, bumpCache]);
+
+  const onToggleStar = () => { if (email) toggleStarFor(email); };
 
   const onToggleUnread = () => {
     if (!email) return;
     if (unread) {
       void markRead(email.id);
-      updateLocalKeywords({ ...email.keywords, $seen: true });
+      updateLocalKeywords(email.id, { ...email.keywords, $seen: true });
     } else {
       const next = { ...email.keywords };
       delete next.$seen;
-      updateLocalKeywords(next);
+      updateLocalKeywords(email.id, next);
       void setEmailKeywords(email.id, next);
     }
   };
@@ -312,8 +339,78 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
     });
   };
 
-  const subject = email?.subject ?? subjectParam ?? '(no subject)';
-  const from = email?.from?.[0];
+  // Registry of every action that can live in the bottom quick-action bar (or
+  // be relocated to the top toolbar). `icon` is a factory so the same action
+  // can render at the toolbar (18px) and bottom-bar (20px) sizes.
+  const quickActionRegistry: Record<
+    QuickAction,
+    { label: string; icon: (size: number, color: string) => React.ReactNode; onPress: () => void; available: boolean }
+  > = {
+    reply: {
+      label: 'Reply',
+      icon: (s, col) => <Reply size={s} color={col} />,
+      onPress: () => navigateCompose('reply'),
+      available: true,
+    },
+    replyAll: {
+      label: 'Reply All',
+      icon: (s, col) => <ReplyAll size={s} color={col} />,
+      onPress: () => navigateCompose('replyAll'),
+      available: true,
+    },
+    forward: {
+      label: 'Forward',
+      icon: (s, col) => <Forward size={s} color={col} />,
+      onPress: () => navigateCompose('forward'),
+      available: true,
+    },
+    delete: {
+      label: 'Delete',
+      icon: (s, col) => <Trash2 size={s} color={col} />,
+      onPress: onDelete,
+      available: true,
+    },
+    archive: {
+      label: 'Archive',
+      icon: (s, col) => <Archive size={s} color={col} />,
+      onPress: onArchive,
+      available: !!archiveMailbox && currentMailboxId !== archiveMailbox?.id,
+    },
+    markUnread: {
+      label: unread ? 'Read' : 'Unread',
+      icon: (s, col) => (unread ? <MailOpen size={s} color={col} /> : <Mail size={s} color={col} />),
+      onPress: onToggleUnread,
+      available: true,
+    },
+    star: {
+      label: starred ? 'Unstar' : 'Star',
+      icon: (s, col) => (
+        <Star size={s} color={starred ? c.starred : col} fill={starred ? c.starred : 'transparent'} />
+      ),
+      onPress: onToggleStar,
+      available: true,
+    },
+    move: {
+      label: 'Move',
+      icon: (s, col) => <FolderInput size={s} color={col} />,
+      onPress: () => setMoveMenuOpen(true),
+      available: mailboxes.length > 0,
+    },
+    spam: {
+      label: isInJunk ? 'Not spam' : 'Spam',
+      icon: (s, col) =>
+        isInJunk ? <ShieldCheck size={s} color={c.success} /> : <ShieldAlert size={s} color={col} />,
+      onPress: onToggleSpam,
+      available: !!junkMailbox || isInJunk,
+    },
+    tag: {
+      label: 'Tag',
+      icon: (s, col) => <Tag size={s} color={col} />,
+      onPress: () => setTagMenuOpen(true),
+      available: keywordDefs.length > 0,
+    },
+  };
+
   const bottomBarHeight = 60 + Math.max(insets.bottom, 4);
 
   // Show extras in priority order. Each toolbar button is ~64px wide (icon+label+padding);
@@ -329,6 +426,17 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
           <ArrowLeft size={22} color={c.text} />
         </Pressable>
         <View style={styles.toolbarActions}>
+          {relocatedActions.map((id) => {
+            const def = quickActionRegistry[id];
+            return (
+              <ToolbarButton
+                key={id}
+                icon={def.icon(18, c.textSecondary)}
+                label={def.label}
+                onPress={def.onPress}
+              />
+            );
+          })}
           <ToolbarButton
             icon={<Trash2 size={18} color={c.textSecondary} />}
             label="Delete"
@@ -373,110 +481,80 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
         </View>
       </View>
 
-      {loading ? (
-        <View style={styles.centered}>
-          <ActivityIndicator color={c.primary} />
-        </View>
-      ) : error ? (
+      {error && !email ? (
         <View style={styles.centered}>
           <Text style={styles.errorText}>{error}</Text>
         </View>
-      ) : email ? (
+      ) : (
         <>
-          <ScrollView
-            style={styles.scroll}
-            contentContainerStyle={{ paddingBottom: bottomBarHeight + spacing.lg }}
-          >
-            {/* Subject block */}
-            <View style={styles.subjectBlock}>
-              <View style={styles.subjectRow}>
-                <View style={styles.subjectMain}>
-                  <Pressable onPress={onToggleStar} hitSlop={8} style={styles.subjectStar}>
-                    <Star
-                      size={18}
-                      color={starred ? c.starred : c.textMuted}
-                      fill={starred ? c.starred : 'transparent'}
-                    />
-                  </Pressable>
-                  <Text style={styles.subjectText}>{subject}</Text>
-                </View>
-                <View style={styles.subjectMeta}>
-                  <Text style={styles.subjectDate}>{formatHeaderDate(email.receivedAt)}</Text>
-                  {email.size > 0 && (
-                    <Text style={styles.subjectSize}>{formatSize(email.size)}</Text>
-                  )}
-                </View>
-              </View>
-            </View>
-
-            {/* Sender info */}
-            <View style={styles.senderBlock}>
-              <View style={styles.senderRow}>
-                <SenderAvatar
-                  name={from?.name}
-                  email={from?.email}
-                  size={componentSizes.avatarMd}
+          {/* Pager: a horizontal page-snapping list over the mailbox. Each
+              page is the full-width pane for one message; native scroll slides
+              between them and onMomentumEnd reports the settled page. */}
+          <FlatList
+            ref={listRef}
+            style={styles.pagerViewport}
+            data={emails}
+            extraData={cacheVersion}
+            keyExtractor={(item) => item.id}
+            horizontal
+            pagingEnabled
+            showsHorizontalScrollIndicator={false}
+            initialScrollIndex={initialIndexRef.current}
+            getItemLayout={(_, index) => ({ length: windowWidth, offset: windowWidth * index, index })}
+            windowSize={3}
+            initialNumToRender={1}
+            maxToRenderPerBatch={2}
+            removeClippedSubviews
+            onMomentumScrollEnd={onMomentumEnd}
+            renderItem={({ item, index }) => (
+              <View style={{ width: windowWidth }}>
+                <EmailPane
+                  id={item.id}
+                  email={detailCache.get(item.id) ?? null}
+                  ensureDetail={ensureDetail}
+                  c={c}
+                  styles={styles}
+                  bottomBarHeight={bottomBarHeight}
+                  attachmentPosition={attachmentPosition}
+                  hideInlineImageAttachments={hideInlineImageAttachments}
+                  downloadingBlobId={downloadingBlobId}
+                  onToggleStar={toggleStarFor}
+                  onPressAttachment={onPressAttachment}
+                  onSwipe={(dir) => goToIndex(dir === 'next' ? index + 1 : index - 1)}
                 />
-                <View style={styles.senderInfo}>
-                  <Text style={styles.senderName} numberOfLines={1}>
-                    {from?.name || from?.email || 'Unknown sender'}
-                  </Text>
-                  {from?.name && from?.email ? (
-                    <Text style={styles.senderEmail} numberOfLines={1}>{from.email}</Text>
-                  ) : null}
-                  <Text style={styles.senderRecipients} numberOfLines={1}>
-                    <Text style={styles.senderRecipientsLabel}>to </Text>
-                    {email.to?.map((t) => t.name || t.email).join(', ') || '-'}
-                  </Text>
-                </View>
               </View>
-              {attachmentPosition === 'beside-sender' && renderAttachments()}
-            </View>
-
-            {/* Attachments chips (full-width below header) */}
-            {attachmentPosition === 'below-header' && renderAttachments()}
-
-            {/* Calendar invitation (auto-detected .ics) */}
-            <CalendarInvitationBanner email={email} />
-
-            {/* Body */}
-            <View style={styles.bodyBlock}>
-              <EmailBodyView email={email} senderEmail={from?.email} />
-            </View>
-          </ScrollView>
+            )}
+          />
 
           {/* Bottom action bar */}
           <View style={[styles.bottomBar, { paddingBottom: Math.max(insets.bottom, 4) }]}>
             <BottomBarButton
               icon={<ChevronLeft size={20} color={c.textMuted} />}
               label="Prev"
-              onPress={prevEmail ? () => goToEmail(prevEmail) : undefined}
+              onPress={prevEmail ? () => goToIndex(currentIndex - 1) : undefined}
               disabled={!prevEmail}
             />
-            <BottomBarButton
-              icon={<Reply size={20} color={c.textSecondary} />}
-              label="Reply"
-              onPress={() => navigateCompose('reply')}
-            />
-            <BottomBarButton
-              icon={<ReplyAll size={20} color={c.textSecondary} />}
-              label="Reply All"
-              onPress={() => navigateCompose('replyAll')}
-            />
-            <BottomBarButton
-              icon={<Forward size={20} color={c.textSecondary} />}
-              label="Forward"
-              onPress={() => navigateCompose('forward')}
-            />
+            {bottomActions.map((id) => {
+              const def = quickActionRegistry[id];
+              return (
+                <BottomBarButton
+                  key={id}
+                  icon={def.icon(20, c.textSecondary)}
+                  label={def.label}
+                  onPress={def.available ? def.onPress : undefined}
+                  disabled={!def.available}
+                />
+              );
+            })}
             <BottomBarButton
               icon={<ChevronRight size={20} color={c.textMuted} />}
               label="Next"
-              onPress={nextEmail ? () => goToEmail(nextEmail) : undefined}
+              onPress={nextEmail ? () => goToIndex(currentIndex + 1) : undefined}
               disabled={!nextEmail}
             />
           </View>
         </>
-      ) : null}
+      )}
 
       <MoreMenuSheet
         visible={moreMenuOpen}
@@ -535,6 +613,215 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
   );
 }
 
+interface EmailPaneProps {
+  id: string;
+  email: Email | null;
+  ensureDetail: (id: string) => Promise<Email | null>;
+  c: ThemePalette;
+  styles: ReturnType<typeof makeStyles>;
+  bottomBarHeight: number;
+  attachmentPosition: 'beside-sender' | 'below-header';
+  hideInlineImageAttachments: boolean;
+  downloadingBlobId: string | null;
+  onToggleStar: (email: Email) => void;
+  onPressAttachment: (email: Email, blobId: string, name: string | undefined, type: string | undefined) => void;
+  onSwipe: (direction: 'prev' | 'next') => void;
+}
+
+// One swipeable page: the scrollable subject / sender / attachments / body for a
+// single message. The pager keeps three of these mounted (prev, current, next)
+// so a swipe slides ready content into view. Each pane owns its own vertical
+// scroll position and "show all attachments" toggle, and renders directly from
+// the email passed to it — neighbours show real content, not a placeholder.
+function EmailPane({
+  id, email, ensureDetail, c, styles, bottomBarHeight, attachmentPosition,
+  hideInlineImageAttachments, downloadingBlobId, onToggleStar, onPressAttachment, onSwipe,
+}: EmailPaneProps) {
+  const [attachmentsExpanded, setAttachmentsExpanded] = React.useState(false);
+
+  // Each pane owns loading its own message: when the list mounts this page and
+  // its detail isn't cached yet, fetch it (coalesced upstream). The shared
+  // cache then re-renders the pane with real content.
+  React.useEffect(() => {
+    if (!email) void ensureDetail(id);
+  }, [id, email, ensureDetail]);
+
+  // Detail not fetched yet. Show a skeleton of the pane layout instead of a
+  // spinner so the transition into real content doesn't jump.
+  if (!email) {
+    return <EmailPaneSkeleton styles={styles} />;
+  }
+
+  const from = email.from?.[0];
+  const starred = !!email.keywords?.$flagged;
+  const subject = email.subject || '(no subject)';
+
+  const renderAttachments = () => {
+    const all = email.attachments;
+    if (!all || all.length === 0) return null;
+    // hideInlineImageAttachments: drop chips for images already shown inline
+    // in the body (any image attachment with a cid:). Non-image inline
+    // attachments stay visible because the user wouldn't see them otherwise.
+    const atts = hideInlineImageAttachments
+      ? all.filter((att) => !(att.cid && (att.type ?? '').startsWith('image/')))
+      : all;
+    if (atts.length === 0) return null;
+    const visible = attachmentsExpanded ? atts : atts.slice(0, 3);
+    return (
+      <View style={styles.attachmentsBlock}>
+        <View style={styles.attachmentsRow}>
+          {visible.map((att, idx) => {
+            const isDownloading = downloadingBlobId === att.blobId;
+            return (
+              <Pressable
+                key={att.blobId ?? idx}
+                style={({ pressed }) => [
+                  styles.attachmentChip,
+                  pressed && styles.attachmentChipPressed,
+                ]}
+                onPress={() => onPressAttachment(email, att.blobId, att.name, att.type)}
+                disabled={!!downloadingBlobId}
+              >
+                {isDownloading ? (
+                  <ActivityIndicator size="small" color={c.textMuted} />
+                ) : (
+                  <Paperclip size={14} color={c.textMuted} />
+                )}
+                <Text style={styles.attachmentName} numberOfLines={1}>
+                  {att.name || 'attachment'}
+                </Text>
+                <Text style={styles.attachmentSize}>{formatSize(att.size)}</Text>
+                <Download size={14} color={c.textMuted} />
+              </Pressable>
+            );
+          })}
+        </View>
+        {atts.length > 3 && (
+          <Pressable
+            onPress={() => setAttachmentsExpanded((v) => !v)}
+            style={({ pressed }) => [
+              styles.attachmentsToggle,
+              pressed && styles.attachmentsTogglePressed,
+            ]}
+            hitSlop={6}
+          >
+            <Text style={styles.attachmentsToggleText}>
+              {attachmentsExpanded ? 'Show less' : `Show all (${atts.length})`}
+            </Text>
+          </Pressable>
+        )}
+      </View>
+    );
+  };
+
+  return (
+    <ScrollView
+      style={styles.scroll}
+      contentContainerStyle={{ paddingBottom: bottomBarHeight + spacing.lg }}
+    >
+      {/* Subject block */}
+      <View style={styles.subjectBlock}>
+        <View style={styles.subjectRow}>
+          <View style={styles.subjectMain}>
+            <Pressable onPress={() => onToggleStar(email)} hitSlop={8} style={styles.subjectStar}>
+              <Star
+                size={18}
+                color={starred ? c.starred : c.textMuted}
+                fill={starred ? c.starred : 'transparent'}
+              />
+            </Pressable>
+            <Text style={styles.subjectText}>{subject}</Text>
+          </View>
+          <View style={styles.subjectMeta}>
+            <Text style={styles.subjectDate}>{formatHeaderDate(email.receivedAt)}</Text>
+            {email.size > 0 && (
+              <Text style={styles.subjectSize}>{formatSize(email.size)}</Text>
+            )}
+          </View>
+        </View>
+      </View>
+
+      {/* Sender info */}
+      <View style={styles.senderBlock}>
+        <View style={styles.senderRow}>
+          <SenderAvatar
+            name={from?.name}
+            email={from?.email}
+            size={componentSizes.avatarMd}
+          />
+          <View style={styles.senderInfo}>
+            <Text style={styles.senderName} numberOfLines={1}>
+              {from?.name || from?.email || 'Unknown sender'}
+            </Text>
+            {from?.name && from?.email ? (
+              <Text style={styles.senderEmail} numberOfLines={1}>{from.email}</Text>
+            ) : null}
+            <Text style={styles.senderRecipients} numberOfLines={1}>
+              <Text style={styles.senderRecipientsLabel}>to </Text>
+              {email.to?.map((t) => t.name || t.email).join(', ') || '-'}
+            </Text>
+          </View>
+        </View>
+        {attachmentPosition === 'beside-sender' && renderAttachments()}
+      </View>
+
+      {/* Attachments chips (full-width below header) */}
+      {attachmentPosition === 'below-header' && renderAttachments()}
+
+      {/* Calendar invitation (auto-detected .ics) */}
+      <CalendarInvitationBanner email={email} />
+
+      {/* Body */}
+      <View style={styles.bodyBlock}>
+        <EmailBodyView email={email} senderEmail={from?.email} onSwipe={onSwipe} />
+      </View>
+    </ScrollView>
+  );
+}
+
+// Placeholder mimicking the pane layout (subject, sender, body lines) shown
+// while a message's detail is loading. One pulsing opacity over static bones
+// keeps it cheap enough to also sit in the off-screen neighbour panes.
+function EmailPaneSkeleton({ styles }: { styles: ReturnType<typeof makeStyles> }) {
+  const pulse = React.useRef(new Animated.Value(0.55)).current;
+  React.useEffect(() => {
+    const loop = Animated.loop(
+      Animated.sequence([
+        Animated.timing(pulse, { toValue: 1, duration: 600, easing: Easing.inOut(Easing.ease), useNativeDriver: true }),
+        Animated.timing(pulse, { toValue: 0.55, duration: 600, easing: Easing.inOut(Easing.ease), useNativeDriver: true }),
+      ]),
+    );
+    loop.start();
+    return () => loop.stop();
+  }, [pulse]);
+
+  const bodyLineWidths = ['92%', '100%', '85%', '96%', '60%', '88%', '74%', '40%'] as const;
+
+  return (
+    <Animated.View style={[styles.scroll, { opacity: pulse }]}>
+      <View style={styles.subjectBlock}>
+        <View style={[styles.skeletonBone, { height: 20, width: '78%' }]} />
+        <View style={[styles.skeletonBone, { height: 12, width: '36%', marginTop: spacing.sm }]} />
+      </View>
+      <View style={styles.senderBlock}>
+        <View style={styles.senderRow}>
+          <View style={styles.skeletonAvatar} />
+          <View style={styles.senderInfo}>
+            <View style={[styles.skeletonBone, { height: 14, width: '55%' }]} />
+            <View style={[styles.skeletonBone, { height: 11, width: '70%', marginTop: 6 }]} />
+            <View style={[styles.skeletonBone, { height: 11, width: '45%', marginTop: 6 }]} />
+          </View>
+        </View>
+      </View>
+      <View style={styles.skeletonBody}>
+        {bodyLineWidths.map((w, i) => (
+          <View key={i} style={[styles.skeletonBone, { height: 12, width: w }]} />
+        ))}
+      </View>
+    </Animated.View>
+  );
+}
+
 interface MoreMenuSheetProps {
   visible: boolean;
   onClose: () => void;
@@ -856,6 +1143,8 @@ function makeStyles(c: ThemePalette) {
     padding: spacing.lg,
   },
   errorText: { ...typography.body, color: c.error, textAlign: 'center' },
+  // Pager: the horizontal page-snapping list fills the area between the bars.
+  pagerViewport: { flex: 1, backgroundColor: c.background },
   scroll: { flex: 1, backgroundColor: c.background },
 
   // Subject block
@@ -990,6 +1279,23 @@ function makeStyles(c: ThemePalette) {
     backgroundColor: c.background,
   },
 
+  // Loading skeleton
+  skeletonBone: {
+    backgroundColor: c.surfaceHover,
+    borderRadius: radius.xs,
+  },
+  skeletonAvatar: {
+    width: componentSizes.avatarMd,
+    height: componentSizes.avatarMd,
+    borderRadius: radius.full,
+    backgroundColor: c.surfaceHover,
+  },
+  skeletonBody: {
+    paddingHorizontal: spacing.lg,
+    paddingVertical: spacing.lg,
+    gap: spacing.sm,
+  },
+
   // Bottom bar
   bottomBar: {
     position: 'absolute',

src/screens/LoginScreen.tsx

@@ -1,11 +1,13 @@
 import React from 'react';
-import { View, Text, Pressable, StyleSheet, KeyboardAvoidingView, Platform, Image } from 'react-native';
+import { View, Text, Pressable, StyleSheet, KeyboardAvoidingView, Platform, Image, Alert } from 'react-native';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import Constants from 'expo-constants';
-import { Eye, EyeOff, X } from 'lucide-react-native';
+import { Eye, EyeOff, X, QrCode } from 'lucide-react-native';
 import { spacing, radius, typography, componentSizes, type ThemePalette } from '../theme/tokens';
 import { useColors } from '../theme/colors';
 import { Button, Input } from '../components';
+import { QrScanModal } from '../components/QrScanModal';
+import { parseQrLoginPayload } from '../lib/oauth';
 import { useAuthStore } from '../stores/auth-store';
 
 const APP_VERSION = Constants.expoConfig?.version ?? '0.0.0';
@@ -21,6 +23,7 @@ export default function LoginScreen({ onLogin, isAddMode, onCancel }: LoginScree
   const styles = React.useMemo(() => makeStyles(c), [c]);
   const login = useAuthStore((state) => state.login);
   const loginViaWebmail = useAuthStore((state) => state.loginViaWebmail);
+  const loginViaPairing = useAuthStore((state) => state.loginViaPairing);
   const isLoading = useAuthStore((state) => state.isLoading);
   const error = useAuthStore((state) => state.error);
   const clearError = useAuthStore((state) => state.clearError);
@@ -29,6 +32,7 @@ export default function LoginScreen({ onLogin, isAddMode, onCancel }: LoginScree
   const [email, setEmail] = React.useState('');
   const [password, setPassword] = React.useState('');
   const [showPassword, setShowPassword] = React.useState(false);
+  const [scannerVisible, setScannerVisible] = React.useState(false);
 
   const canSubmit = Boolean(serverUrl.trim() && email.trim() && password);
   const canHandoff = Boolean(serverUrl.trim());
@@ -65,6 +69,34 @@ export default function LoginScreen({ onLogin, isAddMode, onCancel }: LoginScree
     }
   };
 
+  const handleScanned = async (data: string) => {
+    setScannerVisible(false);
+    const payload = parseQrLoginPayload(data);
+    if (!payload) {
+      Alert.alert('Unrecognized QR code', "That QR code isn't a Bulwark Mail sign-in code.");
+      return;
+    }
+    try {
+      const before = useAuthStore.getState().isAuthenticated;
+      if (payload.kind === 'connect') {
+        // Server-bootstrap QR: fill the field and run the normal browser
+        // handoff so the user still authenticates in the webmail.
+        setServerUrl(payload.webmailUrl);
+        await loginViaWebmail(payload.webmailUrl, { addAccount: isAddMode });
+      } else {
+        // Cross-device pairing QR: redeem the one-time code for tokens, no
+        // browser round-trip needed.
+        await loginViaPairing(payload.webmailUrl, payload.code, { addAccount: isAddMode });
+      }
+      const after = useAuthStore.getState().isAuthenticated;
+      if ((after && !before) || (isAddMode && after)) {
+        onLogin?.();
+      }
+    } catch {
+      // Store state already contains the user-facing error.
+    }
+  };
+
   const updateField = React.useCallback(
     (setter: React.Dispatch<React.SetStateAction<string>>) => (value: string) => {
       if (useAuthStore.getState().error) {
@@ -182,6 +214,15 @@ export default function LoginScreen({ onLogin, isAddMode, onCancel }: LoginScree
               >
                 Sign in via webmail
               </Button>
+              <Button
+                variant="ghost"
+                size="md"
+                onPress={() => setScannerVisible(true)}
+                disabled={isLoading}
+                icon={<QrCode size={18} color={c.text} />}
+              >
+                Scan QR code
+              </Button>
             </View>
           </View>
 
@@ -192,6 +233,14 @@ export default function LoginScreen({ onLogin, isAddMode, onCancel }: LoginScree
           </View>
         </View>
       </KeyboardAvoidingView>
+
+      <QrScanModal
+        visible={scannerVisible}
+        onClose={() => setScannerVisible(false)}
+        onScanned={(data) => {
+          void handleScanned(data);
+        }}
+      />
     </SafeAreaView>
   );
 }

src/stores/auth-store.ts

@@ -7,7 +7,7 @@ import { useContactsStore } from './contacts-store';
 import { useCalendarStore } from './calendar-store';
 import { useFilterStore } from './filter-store';
 import { generateAccountId } from '../lib/account-utils';
-import { runWebmailHandoff, HandoffCancelledError } from '../lib/oauth';
+import { runWebmailHandoff, redeemPairingCode, HandoffCancelledError, type HandoffResult } from '../lib/oauth';
 import {
   teardownPushNotifications,
   teardownPushNotificationsForAccount,
@@ -41,6 +41,7 @@ export interface AuthState {
 
   login: (serverUrl: string, username: string, password: string, opts?: { addAccount?: boolean }) => Promise<void>;
   loginViaWebmail: (webmailUrl: string, opts?: { addAccount?: boolean }) => Promise<void>;
+  loginViaPairing: (webmailUrl: string, code: string, opts?: { addAccount?: boolean }) => Promise<void>;
   logout: () => Promise<void>;
   logoutAll: () => Promise<void>;
   switchAccount: (accountId: string) => Promise<void>;
@@ -97,6 +98,43 @@ function refetchFeatureStores(): void {
   }
 }
 
+// Shared tail of the OAuth sign-in flows (browser handoff and cross-device QR
+// pairing both end here). Bootstraps a JMAP session from the token bundle,
+// registers the account, and flips the store to connected. Throws on failure
+// so the caller can surface a flow-specific error.
+async function completeOAuthHandoff(
+  set: (partial: Partial<AuthState>) => void,
+  get: () => AuthState,
+  result: Extract<HandoffResult, { flow: 'oauth' }>,
+  opts?: { addAccount?: boolean },
+): Promise<void> {
+  if (opts?.addAccount && get().isAuthenticated) {
+    jmapClient.reset();
+    useContactsStore.getState().reset();
+    useCalendarStore.getState().reset();
+  }
+
+  const { session, username, accountId } = await jmapClient.connectWithOAuth(
+    result.serverUrl,
+    result.tokens,
+  );
+
+  const accountStore = useAccountStore.getState();
+  accountStore.addAccount({
+    serverUrl: result.serverUrl.replace(/\/+$/, ''),
+    username,
+    displayName: username,
+    email: username,
+    lastLoginAt: Date.now(),
+    isConnected: true,
+    hasError: false,
+  });
+  accountStore.setActiveAccount(accountId);
+  useEmailStore.getState().setActiveAccount(accountId);
+
+  applyConnectedState(set, session, result.serverUrl.replace(/\/+$/, ''), username, accountId);
+}
+
 function applyConnectedState(
   set: (partial: Partial<AuthState>) => void,
   session: JMAPSession,
@@ -200,31 +238,7 @@ export const useAuthStore = create<AuthState>((set, get) => ({
     // token bundle. Bootstrap the JMAP session with Bearer auth and let
     // ensure/forceRefreshToken keep it alive going forward.
     try {
-      if (opts?.addAccount && get().isAuthenticated) {
-        jmapClient.reset();
-        useContactsStore.getState().reset();
-        useCalendarStore.getState().reset();
-      }
-
-      const { session, username, accountId } = await jmapClient.connectWithOAuth(
-        result.serverUrl,
-        result.tokens,
-      );
-
-      const accountStore = useAccountStore.getState();
-      accountStore.addAccount({
-        serverUrl: result.serverUrl.replace(/\/+$/, ''),
-        username,
-        displayName: username,
-        email: username,
-        lastLoginAt: Date.now(),
-        isConnected: true,
-        hasError: false,
-      });
-      accountStore.setActiveAccount(accountId);
-      useEmailStore.getState().setActiveAccount(accountId);
-
-      applyConnectedState(set, session, result.serverUrl.replace(/\/+$/, ''), username, accountId);
+      await completeOAuthHandoff(set, get, result, opts);
     } catch (err) {
       const message =
         err instanceof AuthenticationError
@@ -237,6 +251,38 @@ export const useAuthStore = create<AuthState>((set, get) => ({
     }
   },
 
+  loginViaPairing: async (webmailUrl, code, opts) => {
+    set({ isLoading: true, error: null });
+    let result;
+    try {
+      result = await redeemPairingCode(webmailUrl, code);
+    } catch (err) {
+      const message = err instanceof Error ? err.message : 'Pairing failed';
+      set({ isLoading: false, error: message });
+      throw err;
+    }
+
+    // redeemPairingCode only ever yields the OAuth flow, but guard anyway so a
+    // future server change can't silently mis-route credentials here.
+    if (result.flow !== 'oauth') {
+      set({ isLoading: false, error: 'Unexpected pairing response' });
+      throw new Error('Unexpected pairing response');
+    }
+
+    try {
+      await completeOAuthHandoff(set, get, result, opts);
+    } catch (err) {
+      const message =
+        err instanceof AuthenticationError
+          ? 'Authentication rejected by server'
+          : err instanceof Error
+            ? err.message
+            : 'Pairing sign-in failed';
+      set({ isLoading: false, error: message });
+      throw err;
+    }
+  },
+
   logout: async () => {
     const accountStore = useAccountStore.getState();
     const currentId = get().activeAccountId;

src/stores/contacts-store.ts

@@ -376,9 +376,9 @@ export function selectGroups(state: ContactsState): ContactCard[] {
   return state.contacts.filter(isGroup);
 }
 
-export function selectKeywordsUsed(state: ContactsState): Array<{ keyword: string; count: number }> {
+export function selectKeywordsUsed(contacts: ContactCard[]): Array<{ keyword: string; count: number }> {
   const counts = new Map<string, number>();
-  for (const contact of state.contacts) {
+  for (const contact of contacts) {
     for (const kw of getContactKeywords(contact)) {
       counts.set(kw, (counts.get(kw) || 0) + 1);
     }
@@ -388,10 +388,13 @@ export function selectKeywordsUsed(state: ContactsState): Array<{ keyword: strin
     .sort((a, b) => a.keyword.localeCompare(b.keyword));
 }
 
-export function selectAddressBooksWithCount(state: ContactsState): Array<AddressBook & { count: number }> {
-  return state.addressBooks.map((book) => ({
+export function selectAddressBooksWithCount(
+  addressBooks: AddressBook[],
+  contacts: ContactCard[],
+): Array<AddressBook & { count: number }> {
+  return addressBooks.map((book) => ({
     ...book,
-    count: state.contacts.filter((c) => !isGroup(c) && c.addressBookIds?.[book.id]).length,
+    count: contacts.filter((c) => !isGroup(c) && c.addressBookIds?.[book.id]).length,
   }));
 }
 

src/stores/settings-store.ts

@@ -21,6 +21,55 @@ export type SwipeAction =
   | 'pin'
   | 'move';
 export type SwipeMode = 'instant' | 'reveal';
+// Actions that can be placed in the email reader's bottom quick-action bar.
+// The first three are the reply family (the default bar); any reply-family
+// action the user removes from the bar is relocated to the top toolbar so it
+// stays reachable.
+export type QuickAction =
+  | 'reply'
+  | 'replyAll'
+  | 'forward'
+  | 'delete'
+  | 'archive'
+  | 'markUnread'
+  | 'star'
+  | 'move'
+  | 'spam'
+  | 'tag';
+
+export const REPLY_QUICK_ACTIONS: QuickAction[] = ['reply', 'replyAll', 'forward'];
+
+export const ALL_QUICK_ACTIONS: QuickAction[] = [
+  'reply',
+  'replyAll',
+  'forward',
+  'delete',
+  'archive',
+  'markUnread',
+  'star',
+  'move',
+  'spam',
+  'tag',
+];
+
+// The reader bottom bar always shows exactly three quick actions (between the
+// prev/next nav buttons). Coerce any persisted value into three unique, valid
+// ids, backfilling from the reply-family default when entries are missing.
+export function normalizeBottomQuickActions(value: unknown): QuickAction[] {
+  const out: QuickAction[] = [];
+  if (Array.isArray(value)) {
+    for (const a of value) {
+      if (ALL_QUICK_ACTIONS.includes(a as QuickAction) && !out.includes(a as QuickAction)) {
+        out.push(a as QuickAction);
+      }
+    }
+  }
+  for (const d of REPLY_QUICK_ACTIONS) {
+    if (out.length >= 3) break;
+    if (!out.includes(d)) out.push(d);
+  }
+  return out.slice(0, 3);
+}
 export type ArchiveMode = 'single' | 'year' | 'month';
 export type CalendarView = 'month' | 'week' | 'day' | 'agenda';
 export type FirstDayOfWeek = 0 | 1;
@@ -103,6 +152,10 @@ interface PersistedSettings {
   swipeRightAction: SwipeAction;
   swipeMode: SwipeMode;
 
+  // Email reader's bottom quick-action bar (3 slots). Defaults to the reply
+  // family; reply-family actions removed from here move to the top toolbar.
+  bottomQuickActions: QuickAction[];
+
   // Archive
   archiveMode: ArchiveMode;
 
@@ -210,6 +263,8 @@ const DEFAULT_PERSISTED: PersistedSettings = {
   swipeRightAction: 'read',
   swipeMode: 'instant',
 
+  bottomQuickActions: ['reply', 'replyAll', 'forward'],
+
   archiveMode: 'single',
 
   calendarDefaultView: 'month',