This was fixed by Debian in 2023, and looks like dovecot is no longer failing autopkgtests due to this issue in questing.
The only LTS this might be an issue for is jammy, but there does not appear to be issues currently https://autopkgtest.ubuntu.com/packages/d/dovecot/jammy/amd64 https://ubuntu-archive-team.ubuntu.com/proposed-migration/jammy/update_excuses.html ** Changed in: dovecot (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2003599 Title: Autopkgtest failure due to deprecated crypt module To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dovecot/+bug/2003599/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs