On Fri, 3 Oct 2025 at 13:55, Oliver Welter via dovecot <[email protected]> wrote:
> There is now a single mailbox where I have an issue with duplicated mails > - the "Sent" folder had approx 400 mails upon migration, it now has 4500 > mails with each mail duplicated several times. Below are the header lines > of one message, besides the Message-Id the header is exactly the same on > all copies. > Not sure if it is related to the upgrade, but we had a similar issue. In general, if Message-id is different, it means it is a different message, not the same message duplicated/copied. In our case, it was some antivirus plugin on client machine trying to move message into Junk/Spam folder, but changing it in the process, which caused it detected the moved message as a new one and a loop started. You can try to check your mailserver (SMTP) logs if you will find the different message ids there. -- bye, Marki _______________________________________________ dovecot mailing list -- [email protected] To unsubscribe send an email to [email protected]
