Move sent emails to sent folder?

[Markus Winkler]

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