Yes. It even defaults to trying to use them, and then will ask if you want to drop to unencrypted if it can't connect when setting up the account.


Out of curiosity, why do you not trust maildir? It's been supported by many programs well for over a decade now, is far easier to find messages when even digging around on the command line, and also trivial to change things even without a mailserver running. I can mark a message read with mv, move a message to another folder with mv, or copy one with cp. And I can obliterate a message with rm. mbox, good luck moving a message manually in a quick way.


I would think an incremental backup of an mbox server would take longer and use up more disk space though. Move one message out of the 10 year old inbox into a 5 year old archive mbox file, and now you have both files being fully backed up again. Or, if you have something trying to generate diffs, you have this heavy process trying to make the diff files for the two folders. Maildir, one file disappears in one folder, one appears somewhere else, and the disk space used is the size of the message.

As far as server recommendations, Courier may indeed bit a bit complex for you use, and I had forgotten about Dovecot (it wasn't around when I first set up mine). I did try it out about a year ago and a friend set one up for his work, and does say it works well. It does also support Maildir just fine, so either format is an option.