diff --git a/components/layout/sidebar.tsx b/components/layout/sidebar.tsx
index d6b2f3447..46c90670a 100644
--- a/components/layout/sidebar.tsx
+++ b/components/layout/sidebar.tsx
@@ -61,6 +61,7 @@ import { MAILBOX_DRAG_MIME } from "@/components/pro/pro-shell-drop";
 import { useTagDrop } from "@/hooks/use-tag-drop";
 import { useUIStore } from "@/stores/ui-store";
 import { useAuthStore } from "@/stores/auth-store";
+import { unifiedLoadProgress } from "@/lib/unified-mailbox";
 import { useVacationStore } from "@/stores/vacation-store";
 import { useSettingsStore, getKeywordVisibility } from "@/stores/settings-store";
 import { useEmailStore } from "@/stores/email-store";
@@ -406,6 +407,7 @@ function SidebarSectionHeader({
   sub,
   testId,
   onContextMenu,
+  status,
 }: {
   label: string;
   expanded: boolean;
@@ -418,6 +420,8 @@ function SidebarSectionHeader({
   sub?: boolean;
   testId?: string;
   onContextMenu?: (event: React.MouseEvent) => void;
+  /** A short note after the label, e.g. how many accounts have loaded. */
+  status?: ReactNode;
 }) {
   if (isCollapsed) {
     return first ? null : <div className="h-px bg-border/50 mx-2 my-2" aria-hidden />;
@@ -451,6 +455,7 @@ function SidebarSectionHeader({
       <span className={cn(textClass, icon ? "ms-1.5" : "ms-1.5")}>
         {label}
       </span>
+      {status}
       {onSettings && (
         <span
           role="button"
@@ -914,6 +919,16 @@ export function Sidebar({
     (multiAccountMode || enableUnifiedMailbox) &&
     (crossAccountActive || (includeGroupInUnified && hasGroupInboxes) || anyCrossViewEnabled);
   const { unifiedCounts } = useEmailStore();
+  // While the other logins are still reconnecting after a load, the unified
+  // counts cover only the ones already back: say how many, so a partial total
+  // is not read as the whole. Gone as soon as the restore finishes, whatever
+  // became of the logins that did not make it.
+  const unifiedScope = useEmailStore((s) => s.unifiedScope);
+  const restoringAccounts = useAuthStore((s) => s.restoringAccounts);
+  const registeredAccounts = useAccountStore((s) => s.accounts);
+  const unifiedProgress = useMemo(() => unifiedLoadProgress({
+    crossAccountActive, restoring: restoringAccounts, scope: unifiedScope, accounts: registeredAccounts,
+  }), [crossAccountActive, restoringAccounts, registeredAccounts, unifiedScope]);
   const t = useTranslations('sidebar');
 
   useEffect(() => {
@@ -1254,6 +1269,16 @@ export function Sidebar({
               onToggle={toggleUnified}
               isCollapsed={isCollapsed}
               first
+              status={unifiedProgress && (
+                <span
+                  className="ms-2 text-xs font-normal tabular-nums text-muted-foreground animate-pulse"
+                  aria-label={t("all_accounts_loading", unifiedProgress)}
+                  title={t("all_accounts_loading", unifiedProgress)}
+                  data-testid="unified-accounts-loading"
+                >
+                  {unifiedProgress.loaded}/{unifiedProgress.total}
+                </span>
+              )}
             />
             {((unifiedExpanded && !isCollapsed) || isCollapsed) && (
               <>
diff --git a/lib/__tests__/unified-load-progress.test.ts b/lib/__tests__/unified-load-progress.test.ts
new file mode 100644
index 000000000..7b9c02e92
--- /dev/null
+++ b/lib/__tests__/unified-load-progress.test.ts
@@ -0,0 +1,37 @@
+import { describe, expect, it } from 'vitest';
+import { unifiedLoadProgress } from '@/lib/unified-mailbox';
+
+// While a browser restores its logins the unified counts cover only the ones
+// already back. The sidebar says how many, so a partial total is not read as
+// the whole - and stops saying it the moment the restore is over.
+const scope = (...ids: string[]) => ids.map((id) => ({ clientAccountId: id, isShared: false }));
+const accounts = (n: number, failed = 0) =>
+  Array.from({ length: n }, (_, i) => ({ hasError: i < failed }));
+
+describe('unifiedLoadProgress', () => {
+  it('counts the logins already in the scope against those expected', () => {
+    expect(unifiedLoadProgress({ crossAccountActive: true, restoring: true, scope: scope('a', 'b', 'c', 'd'), accounts: accounts(10) }))
+      .toEqual({ loaded: 4, total: 10 });
+  });
+
+  it('leaves out logins whose restore failed', () => {
+    expect(unifiedLoadProgress({ crossAccountActive: true, restoring: true, scope: scope('a', 'b'), accounts: accounts(4, 1) }))
+      .toEqual({ loaded: 2, total: 3 });
+  });
+
+  it('counts a login once however many shared owners it brings', () => {
+    const withShared = [...scope('a'), { clientAccountId: 'a', isShared: true }, { clientAccountId: 'a', isShared: true }];
+    expect(unifiedLoadProgress({ crossAccountActive: true, restoring: true, scope: withShared, accounts: accounts(3) }))
+      .toEqual({ loaded: 1, total: 3 });
+  });
+
+  it('says nothing once the scope is complete, the restore is over, or there is one login', () => {
+    expect(unifiedLoadProgress({ crossAccountActive: true, restoring: true, scope: scope('a', 'b'), accounts: accounts(2) })).toBeNull();
+    expect(unifiedLoadProgress({ crossAccountActive: true, restoring: false, scope: scope('a'), accounts: accounts(5) })).toBeNull();
+    expect(unifiedLoadProgress({ crossAccountActive: true, restoring: true, scope: [], accounts: accounts(1) })).toBeNull();
+  });
+
+  it('says nothing when the unified mailbox stays within one login', () => {
+    expect(unifiedLoadProgress({ crossAccountActive: false, restoring: true, scope: scope('a'), accounts: accounts(5) })).toBeNull();
+  });
+});
diff --git a/lib/unified-mailbox.ts b/lib/unified-mailbox.ts
index 062208fe9..f65303c35 100644
--- a/lib/unified-mailbox.ts
+++ b/lib/unified-mailbox.ts
@@ -722,3 +722,22 @@ export function connectedAccountsGrew(previous: string | null, current: string):
   const before = new Set(previous ? previous.split(',').filter(Boolean) : []);
   return current.split(',').some((id) => id !== '' && !before.has(id));
 }
+
+/**
+ * How far the unified scope has got while logins are still reconnecting:
+ * `{ loaded, total }` while some logins expected in it are not there yet,
+ * `null` once it is complete, when it spans only one login, or when no
+ * restore is running (a login that did not make it must not keep the note up).
+ */
+export function unifiedLoadProgress(input: {
+  crossAccountActive: boolean;
+  restoring: boolean;
+  scope: Pick<UnifiedAccountClient, 'clientAccountId' | 'isShared'>[];
+  accounts: { hasError?: boolean }[];
+}): { loaded: number; total: number } | null {
+  if (!input.crossAccountActive || !input.restoring) return null;
+  const total = input.accounts.filter((a) => !a.hasError).length;
+  if (total < 2) return null;
+  const loaded = new Set(input.scope.filter((e) => !e.isShared).map((e) => e.clientAccountId)).size;
+  return loaded < total ? { loaded, total } : null;
+}
diff --git a/locales/ar/common.json b/locales/ar/common.json
index 47f70f28b..b5942aa1c 100644
--- a/locales/ar/common.json
+++ b/locales/ar/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "كل الأرشيف",
     "unified_junk": "كل البريد المزعج",
     "all_accounts": "كل الحسابات",
+    "all_accounts_loading": "جارٍ تحميل الحسابات: {loaded} من {total}",
     "unified_mailbox": "صندوق البريد الموحّد",
     "expand": "توسيع",
     "collapse": "طي",
diff --git a/locales/ca/common.json b/locales/ca/common.json
index ac53ba2fe..7980d9384 100644
--- a/locales/ca/common.json
+++ b/locales/ca/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Tot l'arxiu",
     "unified_junk": "Tot el correu brossa",
     "all_accounts": "Tots els comptes",
+    "all_accounts_loading": "Carregant comptes: {loaded} de {total}",
     "unified_mailbox": "Bústia unificada",
     "expand": "Desplega",
     "collapse": "Replega",
diff --git a/locales/cs/common.json b/locales/cs/common.json
index a29ce634c..e75d45a38 100644
--- a/locales/cs/common.json
+++ b/locales/cs/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Všechny archivy",
     "unified_junk": "Všechen spam",
     "all_accounts": "Všechny účty",
+    "all_accounts_loading": "Načítání účtů: {loaded} z {total}",
     "unified_mailbox": "Sjednocená schránka",
     "expand": "Rozbalit",
     "collapse": "Sbalit",
diff --git a/locales/da/common.json b/locales/da/common.json
index 42b3776e9..74645b094 100644
--- a/locales/da/common.json
+++ b/locales/da/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Alle arkiver",
     "unified_junk": "Alt spam",
     "all_accounts": "Alle konti",
+    "all_accounts_loading": "Indlæser konti: {loaded} af {total}",
     "unified_mailbox": "Samlet postkasse",
     "expand": "Udvid",
     "collapse": "Skjul",
diff --git a/locales/de/common.json b/locales/de/common.json
index 54147f319..2555d7790 100644
--- a/locales/de/common.json
+++ b/locales/de/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Alle Archive",
     "unified_junk": "Alle Spam",
     "all_accounts": "Alle Konten",
+    "all_accounts_loading": "Konten werden geladen: {loaded} von {total}",
     "unified_mailbox": "Gemeinsames Postfach",
     "expand": "Erweitern",
     "collapse": "Einklappen",
diff --git a/locales/en/common.json b/locales/en/common.json
index a3323e62c..ad2c3f45e 100644
--- a/locales/en/common.json
+++ b/locales/en/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "All Archive",
     "unified_junk": "All Junk",
     "all_accounts": "All Accounts",
+    "all_accounts_loading": "Loading accounts: {loaded} of {total}",
     "unified_mailbox": "Unified Mailbox",
     "expand": "Expand",
     "collapse": "Collapse",
diff --git a/locales/es/common.json b/locales/es/common.json
index 72ec44153..21a79d162 100644
--- a/locales/es/common.json
+++ b/locales/es/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Todos los archivos",
     "unified_junk": "Todo el spam",
     "all_accounts": "Todas las cuentas",
+    "all_accounts_loading": "Cargando cuentas: {loaded} de {total}",
     "unified_mailbox": "Buzón unificado",
     "expand": "Expandir",
     "collapse": "Contraer",
diff --git a/locales/fa/common.json b/locales/fa/common.json
index 2fead4e4c..723dfdfd7 100644
--- a/locales/fa/common.json
+++ b/locales/fa/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "همه بایگانی‌ها",
     "unified_junk": "همه هرزنامه‌ها",
     "all_accounts": "همه حساب‌ها",
+    "all_accounts_loading": "در حال بارگیری حساب‌ها: {loaded} از {total}",
     "unified_mailbox": "صندوق پستی یکپارچه",
     "expand": "باز کردن",
     "collapse": "جمع کردن",
diff --git a/locales/fr/common.json b/locales/fr/common.json
index 2efcf454a..2d8e737f8 100644
--- a/locales/fr/common.json
+++ b/locales/fr/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Toutes les archives",
     "unified_junk": "Tous les indésirables",
     "all_accounts": "Tous les comptes",
+    "all_accounts_loading": "Chargement des comptes : {loaded} sur {total}",
     "unified_mailbox": "Boîte aux lettres unifiée",
     "expand": "Développer",
     "collapse": "Réduire",
diff --git a/locales/he/common.json b/locales/he/common.json
index 0bfd3df48..234e6b769 100644
--- a/locales/he/common.json
+++ b/locales/he/common.json
@@ -142,6 +142,7 @@
     "unified_archive": "הכל ארכיון",
     "unified_junk": "הכל דואר זבל",
     "all_accounts": "כל החשבונות",
+    "all_accounts_loading": "טוען חשבונות: {loaded} מתוך {total}",
     "shared": "משותף",
     "scheduled": "מתוכננים",
     "unified_all_unread": "הכל שלא נקראו",
diff --git a/locales/hu/common.json b/locales/hu/common.json
index 704beb680..98ac6fcc5 100644
--- a/locales/hu/common.json
+++ b/locales/hu/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Összes archívum",
     "unified_junk": "Összes spam",
     "all_accounts": "Minden fiók",
+    "all_accounts_loading": "Fiókok betöltése: {loaded} / {total}",
     "unified_mailbox": "Egységes postafiók",
     "expand": "Kibontás",
     "collapse": "Összecsukás",
diff --git a/locales/it/common.json b/locales/it/common.json
index 1e1e4335f..3f7671ebf 100644
--- a/locales/it/common.json
+++ b/locales/it/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Tutti gli archivi",
     "unified_junk": "Tutto lo spam",
     "all_accounts": "Tutti gli account",
+    "all_accounts_loading": "Caricamento account: {loaded} di {total}",
     "unified_mailbox": "Casella di posta unificata",
     "expand": "Espandi",
     "collapse": "Comprimi",
diff --git a/locales/ja/common.json b/locales/ja/common.json
index 76cca8f72..299da4724 100644
--- a/locales/ja/common.json
+++ b/locales/ja/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "すべてのアーカイブ",
     "unified_junk": "すべての迷惑メール",
     "all_accounts": "すべてのアカウント",
+    "all_accounts_loading": "アカウントを読み込み中: {total} 件中 {loaded} 件",
     "unified_mailbox": "統合メールボックス",
     "expand": "展開",
     "collapse": "折りたたむ",
diff --git a/locales/ko/common.json b/locales/ko/common.json
index 4533a4c43..5e4f69096 100644
--- a/locales/ko/common.json
+++ b/locales/ko/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "모든 보관함",
     "unified_junk": "모든 스팸함",
     "all_accounts": "모든 계정",
+    "all_accounts_loading": "계정 불러오는 중: {total}개 중 {loaded}개",
     "unified_mailbox": "통합 메일함",
     "expand": "펼치기",
     "collapse": "접기",
diff --git a/locales/lv/common.json b/locales/lv/common.json
index 90cf433d1..627ced780 100644
--- a/locales/lv/common.json
+++ b/locales/lv/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Visi arhīvi",
     "unified_junk": "Viss mēstules",
     "all_accounts": "Visi konti",
+    "all_accounts_loading": "Ielādē kontus: {loaded} no {total}",
     "unified_mailbox": "Apvienotā pastkaste",
     "expand": "Izvērst",
     "collapse": "Sairt",
diff --git a/locales/mn/common.json b/locales/mn/common.json
index 25d779f07..a494a2a8d 100644
--- a/locales/mn/common.json
+++ b/locales/mn/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Бүх архив",
     "unified_junk": "Бүх хог",
     "all_accounts": "Бүх дансууд",
+    "all_accounts_loading": "Бүртгэлүүдийг ачаалж байна: {total}-аас {loaded}",
     "unified_mailbox": "Нэгдсэн шуудангийн хайрцаг",
     "expand": "Өргөтгөх",
     "collapse": "Нуналт",
diff --git a/locales/nb/common.json b/locales/nb/common.json
index 9a1afb0e6..acdc41371 100644
--- a/locales/nb/common.json
+++ b/locales/nb/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Alle arkiver",
     "unified_junk": "All søppelpost",
     "all_accounts": "Alle kontoer",
+    "all_accounts_loading": "Laster inn kontoer: {loaded} av {total}",
     "unified_mailbox": "Samlet postkasse",
     "expand": "Utvid",
     "collapse": "Fold sammen",
diff --git a/locales/nl/common.json b/locales/nl/common.json
index 965ebb1f9..3470bc713 100644
--- a/locales/nl/common.json
+++ b/locales/nl/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Alle archieven",
     "unified_junk": "Alle spam",
     "all_accounts": "Alle accounts",
+    "all_accounts_loading": "Accounts laden: {loaded} van {total}",
     "unified_mailbox": "Gecombineerd postvak",
     "expand": "Uitklappen",
     "collapse": "Inklappen",
diff --git a/locales/pl/common.json b/locales/pl/common.json
index fc105f237..6e087623d 100644
--- a/locales/pl/common.json
+++ b/locales/pl/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Wszystkie archiwa",
     "unified_junk": "Wszystkie spam",
     "all_accounts": "Wszystkie konta",
+    "all_accounts_loading": "Wczytywanie kont: {loaded} z {total}",
     "unified_mailbox": "Wspólna skrzynka",
     "expand": "Rozwiń",
     "collapse": "Zwiń",
diff --git a/locales/pt/common.json b/locales/pt/common.json
index 9aa5aba90..56ba1e162 100644
--- a/locales/pt/common.json
+++ b/locales/pt/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Todos os arquivos",
     "unified_junk": "Todo o spam",
     "all_accounts": "Todas as contas",
+    "all_accounts_loading": "A carregar contas: {loaded} de {total}",
     "unified_mailbox": "Caixa de correio unificada",
     "expand": "Expandir",
     "collapse": "Recolher",
diff --git a/locales/ro/common.json b/locales/ro/common.json
index 2bbf38651..f00cb6e54 100644
--- a/locales/ro/common.json
+++ b/locales/ro/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Arhivă completă",
     "unified_junk": "Toate mesajele nedorite",
     "all_accounts": "Toate conturile",
+    "all_accounts_loading": "Se încarcă conturile: {loaded} din {total}",
     "unified_mailbox": "Căsuță poștală unificată",
     "expand": "Extindeți",
     "collapse": "Reduceți",
diff --git a/locales/ru/common.json b/locales/ru/common.json
index 1691cd9d0..f636e4b19 100644
--- a/locales/ru/common.json
+++ b/locales/ru/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Все архивы",
     "unified_junk": "Весь спам",
     "all_accounts": "Все аккаунты",
+    "all_accounts_loading": "Загрузка аккаунтов: {loaded} из {total}",
     "unified_mailbox": "Общий почтовый ящик",
     "expand": "Развернуть",
     "collapse": "Свернуть",
diff --git a/locales/sk/common.json b/locales/sk/common.json
index 36494f77c..63f90755e 100644
--- a/locales/sk/common.json
+++ b/locales/sk/common.json
@@ -121,6 +121,7 @@
     "unified_archive": "Všetky archívy",
     "unified_junk": "Všetok spam",
     "all_accounts": "Všetky účty",
+    "all_accounts_loading": "Načítavajú sa účty: {loaded} z {total}",
     "expand": "Rozbaliť",
     "collapse": "Zbaliť",
     "expand_tooltip": "Rozbaliť",
diff --git a/locales/tr/common.json b/locales/tr/common.json
index 74ab00670..4d35b4958 100644
--- a/locales/tr/common.json
+++ b/locales/tr/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Tüm Arşiv",
     "unified_junk": "Tüm Önemsiz",
     "all_accounts": "Tüm Hesaplar",
+    "all_accounts_loading": "Hesaplar yükleniyor: {loaded}/{total}",
     "unified_mailbox": "Birleşik Posta Kutusu",
     "expand": "Genişlet",
     "collapse": "Daralt",
diff --git a/locales/uk/common.json b/locales/uk/common.json
index f3ac459f0..6434bf637 100644
--- a/locales/uk/common.json
+++ b/locales/uk/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "Усі архіви",
     "unified_junk": "Весь спам",
     "all_accounts": "Усі облікові записи",
+    "all_accounts_loading": "Завантаження облікових записів: {loaded} з {total}",
     "unified_mailbox": "Спільна поштова скринька",
     "expand": "Розгорнути",
     "collapse": "Згорнути",
diff --git a/locales/zh-TW/common.json b/locales/zh-TW/common.json
index 3ac3b27af..a207746ac 100644
--- a/locales/zh-TW/common.json
+++ b/locales/zh-TW/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "所有封存郵件",
     "unified_junk": "所有垃圾郵件",
     "all_accounts": "所有帳號",
+    "all_accounts_loading": "正在載入帳號：{loaded}/{total}",
     "unified_mailbox": "整合信箱",
     "expand": "展開",
     "collapse": "收合",
diff --git a/locales/zh/common.json b/locales/zh/common.json
index 2fd64f7c6..6983d8e17 100644
--- a/locales/zh/common.json
+++ b/locales/zh/common.json
@@ -120,6 +120,7 @@
     "unified_archive": "所有归档",
     "unified_junk": "所有垃圾邮件",
     "all_accounts": "所有账户",
+    "all_accounts_loading": "正在加载账户：{loaded}/{total}",
     "unified_mailbox": "统一邮箱",
     "expand": "展开",
     "collapse": "收起",
diff --git a/stores/auth-store.ts b/stores/auth-store.ts
index ba05aed93..b1c2eb4c3 100644
--- a/stores/auth-store.ts
+++ b/stores/auth-store.ts
@@ -72,6 +72,12 @@ interface AuthState {
    * (push notifications) re-run over the now-complete client set.
    */
   connectedAccountsRevision: number;
+  /**
+   * True while the logins other than the one on screen are still being
+   * restored after a load, so views that span every login (the unified
+   * mailbox) can say they are not complete yet.
+   */
+  restoringAccounts: boolean;
 
   login: (serverUrl: string, username: string, password: string, totp?: string, rememberMe?: boolean) => Promise<boolean>;
   /**
@@ -1248,6 +1254,7 @@ export const useAuthStore = create<AuthState>()(
       activeAccountId: null,
       isDemoMode: false,
       connectedAccountsRevision: 0,
+      restoringAccounts: false,
 
       login: async (serverUrl, typedUsername, password, totp, rememberMe) => {
         set({ isLoading: true, error: null, isRateLimited: false, rateLimitUntil: null });
@@ -2649,8 +2656,9 @@ export const useAuthStore = create<AuthState>()(
 
           if (clients.has(targetId)) {
             if (otherAccounts.length > 0) {
+              set({ restoringAccounts: true });
               void restoreRemaining().then(() => {
-                set((state) => ({ connectedAccountsRevision: state.connectedAccountsRevision + 1 }));
+                set((state) => ({ connectedAccountsRevision: state.connectedAccountsRevision + 1, restoringAccounts: false }));
               });
             }
           } else {