500 Internal Server Error if the options page is requested for a non-existent user
https://bugs.launchpad.net/mailman/+bug/1961762 Commits that fix the bug: - https://bazaar.launchpad.net/~mailman-coders/mailman/2.1/revision/1887 - https://bazaar.launchpad.net/~mailman-coders/mailman/2.1/revision/1888 And there are other commits following these above that seem interesting too: https://code.launchpad.net/~mailman-coders/mailman/2.1
issue