Issue: Attachment from Later Email Appears on Earlier Email
Hello,
Today, I encountered a very strange phenomenon, and I'm not sure if Dovecot is involved:
A user sent an email at 11:55 AM with a PDF attachment. When checking their inbox in Outlook, they noticed that this exact PDF had somehow been attached to an email that was originally received at 10:50 AM. I verified the timestamps in the logs, and they are correct.
So essentially, the attachment from a later-sent email was appended to an earlier-received email sitting in the inbox-even though the two messages are completely unrelated.
I have never seen anything like this before-how is this even possible? Does anyone have any advice?
Thanks in advance!
Jens
Hello, Today, I encountered a very strange phenomenon, and I’m not sure if Dovecot is involved: A user sent an email at 11:55 AM with a PDF attachment. When checking their inbox in Outlook, they noticed that this exact PDF had somehow been attached to an email that was originally received at 10:50 AM. I verified the timestamps in the logs, and they are correct. So essentially, the attachment from a later-sent email was appended to an earlier-received email sitting in the inbox—even though the two messages are completely unrelated. I have never seen anything like this before—how is this even possible? Does anyone have any advice? Thanks in advance! Jens
Check message id header and other identical headers if there was any. They might be causing the problem.
On 2025-04-03 11:25, postfix_dovecot--- via dovecot wrote:
Hello,
Today, I encountered a very strange phenomenon, and I'm not sure if Dovecot is involved:
A user sent an email at 11:55 AM with a PDF attachment. When checking their inbox in Outlook, they noticed that this exact PDF had somehow been attached to an email that was originally received at 10:50 AM. I verified the timestamps in the logs, and they are correct.
So essentially, the attachment from a later-sent email was appended to an earlier-received email sitting in the inbox-even though the two messages are completely unrelated.
I have never seen anything like this before-how is this even possible? Does anyone have any advice?
Thanks in advance!
Jens
dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-leave@dovecot.org
[https://api.zakaria.website/users/hi@zakaria.website/ 30102f8d70cd4943827b37a2d53780df@zakaria.website/3664c04b77b52fbbaed61f.png] Check message id header and other identical headers if there was any. They might be causing the problem.
On 2025-04-03 11:25, postfix_dovecot--- via dovecot wrote:
Hello,
Today, I encountered a very strange phenomenon, and I'm not sure if Dovecot is involved:
A user sent an email at 11:55 AM with a PDF attachment. When checking their inbox in Outlook, they noticed that this exact PDF had somehow been attached to an email that was originally received at 10:50 AM. I verified the timestamps in the logs, and they are correct.
So essentially, the attachment from a later-sent email was appended to an earlier-received email sitting in the inbox-even though the two messages are completely unrelated.
I have never seen anything like this before-how is this even possible? Does anyone have any advice?
Thanks in advance!
Jens
dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-leave@dovecot.org
participants (2)
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postfix_dovecot＠gmx.de
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Zakaria