Self-hosting e-mail is a terrible pain. Nonethless I am (hopefully!!!) moving all my servers over to Guix, and that also means moving over my email setup.
Previously I've used a very ad-hoc setup with Postfix and Dovecot listening on localhost-only (since configuring these things safely is so hard). It's been a long time since I set them up though... we don't currently have Postfix in Guix, though Gábor Boskovits has a wip-postfix branch so maybe I should check that out. I'd also be fine running Exim but I don't even know where to get started on configuring it. Has anyone published Guix-as-a-mailserver configuration somewhere they're willing to share and for me to peek at? Thanks! - Chris
