Mailcow-dockerized: Postfix queue lost on upgrade

[lgleim]

Not sure where this is stored but the queue folder should be persisted on a data or host volume in order to survive container upgrades.
At the moment anything that has not yet been delivered will silently be lost.

[tehXor]

A workaround (well I guess actually it's also the best way to do it but I'm not sure) is to add /var/spool/postfix/ to the volumes of postfix-mailcow.

[miclnl]

A workaround (well I guess actually it's also the best way to do it but I'm not sure) is to add /var/spool/postfix/ to the volumes of postfix-mailcow.

Yes this will probably work. Create a dedicated volume in the compose file and link/mount that to /var/spool/postfix in the postfix-container. Volumes are persistent and keeping it separate from the host-system would allow you to run another mail service without problems.

[andryyy]

Implemented it (finally...). :-)