On 17.06.22 20:48, Austin Witmer wrote:
Doing an ls /maildir/user/.Sent/cur folder shows the duplicate messages. It seems like postfix is bccing the outgoing message more than once somehow.
That may happen - Postfix cannot check for duplicates. So ...
Maybe I need to take this conversation over to the postfix mailing list?
... no. ;-) You can solve this problem with the duplicate extension of Pigeonhole Sieve: https://doc.dovecot.org/configuration_manual/sieve/extensions/duplicate/ https://doc.dovecot.org/settings/pigeonhole-ext/duplicate/ https://datatracker.ietf.org/doc/html/rfc7352#section-5.1 HTH and kind regards, Markus
