https://nixy.dk/categories/mail/Recent content in Mail on *NiX iS SeXyHugoen-us:(){ :|:& };: copyleft, steal this content, no rights reserved.Mon, 18 Sep 2017 00:00:00 +0000https://nixy.dk/posts/dovecot-unknown-protocol-imaps/Mon, 18 Sep 2017 00:00:00 +0000https://nixy.dk/posts/dovecot-unknown-protocol-imaps/Came across this weird bug when upgrading a system through Weezy -> Jessie -> Stretch today. A server was running dovecot with imaps. After the upgrade, it was no longer responding on port 993. After some digging around, i found out that the issue was located in 10-ssl.conf: ssl = no You can go ahead and change that setting to ssl = required and have another look at the various settings in the file.