Further investigation showed error was due to deprecated TLS options in settings files.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1793932 Title: Error on upgrade to LTS version of server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/exim4/+bug/1793932/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs