Right; mail server upgraded to #debian Trixie; I did it by recreating it in a local VM first; package install to match, and then tested a restore from my encrypted backups - which was a good exercise in its self. Then a dist-upgrade; fixing up Dovecot was the hairiest bit - they've randomly changed the name of a bunch of options. mail_location is now mail_driver/home/path/inbox_path and the ssl options have also changed. mbox files are deprecated , but still work for now - job for later.
@penguin42 I need to upgrade my email systems too. The two VMs, have very basic settings, and my main server which pulls from the two VMs isn't much more complex, but I've been putting it off.
I was planning on doing what you did to work out how painful it's going to be. I only have two accounts to deal with, and the current settings are almost vanilla as well.
@penguin42 @drajt snap. Usual plan is to take the new default config and try and make it behave like the old one
This'll be fun* for my Internet facing Sendmail and Dovecot at Xmas