diff --git a/src/lib/__tests__/reply-compose.test.ts b/src/lib/__tests__/reply-compose.test.ts
index 16d65bda..e1269f7c 100644
--- a/src/lib/__tests__/reply-compose.test.ts
+++ b/src/lib/__tests__/reply-compose.test.ts
@@ -68,3 +68,18 @@ describe('replyComposeParams: quoted inline images', () => {
     expect(replyComposeParams('forward', withImage)?.replyTo?.attachments).toEqual([quotedImage, file]);
   });
 });
+
+describe('replyComposeParams: report parts', () => {
+  const file = { blobId: 'b-pdf', type: 'application/pdf', name: 'report.pdf', disposition: 'attachment' };
+  const reports = [
+    { blobId: 'r1', type: 'message/delivery-status', name: null, disposition: 'attachment' },
+    { blobId: 'r2', type: 'message/disposition-notification', name: null, disposition: 'attachment' },
+    { blobId: 'r3', type: 'message/global-delivery-status', name: null, disposition: 'attachment' },
+    { blobId: 'r4', type: 'Message/Global-Disposition-Notification; charset=utf-8', name: null, disposition: 'attachment' },
+  ];
+  const bounce = { ...source, attachments: [...reports, file] } as unknown as Email;
+
+  it('leaves bounce and receipt reports, the global forms too, out of a forward', () => {
+    expect(replyComposeParams('forward', bounce)?.replyTo?.attachments).toEqual([file]);
+  });
+});
diff --git a/src/lib/reply-compose.ts b/src/lib/reply-compose.ts
index f46c6d97..a066a220 100644
--- a/src/lib/reply-compose.ts
+++ b/src/lib/reply-compose.ts
@@ -1,9 +1,25 @@
 import type { Attachment, Email } from '../api/types';
 import type { RootStackParamList } from '../navigation/types';
+import { isReportPart } from './attachment-display';
 import { pickEmailBody, plainTextBody } from './email-body';
 import { extractCidRefs } from './email-html';
 import { stripMessageIdBrackets } from './email-threading';
 
+// Bounce and read-receipt reports (RFC 3464, RFC 8098) and their
+// internationalised forms (RFC 6533). They describe the message they came
+// with and mean nothing attached to another (webmail
+// lib/attachment-visibility.ts, 8a09ba573).
+const REPORT_TYPES = new Set([
+  'message/delivery-status',
+  'message/disposition-notification',
+  'message/global-delivery-status',
+  'message/global-disposition-notification',
+]);
+
+function isReport(type?: string | null): boolean {
+  return isReportPart(type) || REPORT_TYPES.has((type || '').split(';')[0].trim().toLowerCase());
+}
+
 /**
  * The parts a reply or forward hands the composer. The inline images the
  * quoted HTML embeds go along in both modes: the composer fetches them into
@@ -15,7 +31,7 @@ function carriedParts(mode: 'reply' | 'replyAll' | 'forward', source: Email, quo
   const quoted = new Set(quoteHtml ? extractCidRefs(quoteHtml) : []);
   const isQuoted = (a: Attachment) => !!a.cid && quoted.has(stripMessageIdBrackets(a.cid));
   const parts = (source.attachments ?? []).filter((a) =>
-    isQuoted(a) || (mode === 'forward' && !(a.disposition === 'inline' && a.cid)));
+    !isReport(a.type) && (isQuoted(a) || (mode === 'forward' && !(a.disposition === 'inline' && a.cid))));
   return parts.length > 0 || mode === 'forward' ? parts : undefined;
 }