I think I found it, the check to: if `dpkg --compare-versions "$2" lt 3.1.0-1~`; then has no else clause that we could hit.
But by checking more in Detail I realized that this version check is not in all releases. It was added in 3.1.3-1 and thereby is in all releases. It is in Zesty and later but missing in Xenial and that is what hits you. So this comes down to essentially https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=833103 ** Bug watch added: Debian Bug tracker #833103 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=833103 ** Also affects: postfix (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: postfix (Ubuntu) Status: New => Fix Released ** Also affects: postfix (Debian) via https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=833103 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727699 Title: SSL issue upgrading postfix To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1727699/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
