From 8184b75196fcf7784a77a3dac4e5fd2904be0d98 Mon Sep 17 00:00:00 2001
From: Linus Rath <139418639+rathlinus@users.noreply.github.com>
Date: Wed, 4 Nov 2026 06:37:59 +0100
Subject: [PATCH] fix: leave the message size out of the reader header

---
 .../__tests__/reader-spam-trash-actions.test.tsx  |  7 +++++++
 components/email/email-viewer.tsx                 | 15 +++------------
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/components/email/__tests__/reader-spam-trash-actions.test.tsx b/components/email/__tests__/reader-spam-trash-actions.test.tsx
index b806a9eea..815449deb 100644
--- a/components/email/__tests__/reader-spam-trash-actions.test.tsx
+++ b/components/email/__tests__/reader-spam-trash-actions.test.tsx
@@ -103,3 +103,10 @@ describe('reader toolbar in the Inbox', () => {
   });
 });
 
+describe('reader header', () => {
+  it('shows no message size (the details have it)', async () => {
+    render(<EmailViewer email={{ ...message('inbox'), size: 2150 } as Email} isLoading={false} mailboxes={mailboxes} selectedMailbox="inbox" currentMailboxRole="inbox" />);
+    await act(async () => { await new Promise((r) => setTimeout(r, 10)); });
+    expect(document.body.textContent).not.toContain('2.1 KB');
+  });
+});
diff --git a/components/email/email-viewer.tsx b/components/email/email-viewer.tsx
index 06017e6e1..b3ecfc7da 100644
--- a/components/email/email-viewer.tsx
+++ b/components/email/email-viewer.tsx
@@ -5055,16 +5055,12 @@ ${printWatermark ? printWatermark.html : ''}
               </div>
             )}
             {/* Date/time on the right of subject row - hidden on mobile, shown next to sender.
-                Mountain View puts it on the sender's row instead, and shows no size. */}
+                Mountain View puts it on the sender's row instead. The size is
+                in the details. */}
             <div className={cn("hidden flex-shrink-0 text-end", !mvViewer && "sm:block")}>
               <span className="text-xs lg:text-sm text-muted-foreground whitespace-nowrap">
                 {formatDateTime(emailDisplayDate(email), timeFormat, { weekday: 'short', year: 'numeric', month: 'short', day: 'numeric' })}
               </span>
-              {email.size > 0 && (
-                <div className="text-xs text-muted-foreground">
-                  <bdi>{formatFileSize(email.size)}</bdi>
-                </div>
-              )}
             </div>
           </div>
         </div>
@@ -5415,18 +5411,13 @@ ${printWatermark ? printWatermark.html : ''}
                 </button>
               </div>
             </div>
-            {/* Date/time + size on the right (mobile) */}
+            {/* Date/time on the right (mobile); the size is in the details */}
             <div className="sm:hidden flex-shrink-0 text-end ms-2">
               <span className="text-xs text-muted-foreground whitespace-nowrap">
                 {mvMobileViewer
                   ? formatDate(emailDisplayDate(email))
                   : formatDateTime(emailDisplayDate(email), timeFormat, { weekday: 'short', year: 'numeric', month: 'short', day: 'numeric' })}
               </span>
-              {email.size > 0 && !mvMobileViewer && (
-                <div className="text-xs text-muted-foreground">
-                  <bdi>{formatFileSize(email.size)}</bdi>
-                </div>
-              )}
             </div>
             {/* Mountain View phone: reply from the top of the message, not
                 only from the row under a long body (#1475). */}