A while ago, we banned using + in your email address for mailing lists. It's time to remove this ban since we've achieved most of this differently.
Here is the command I used: /usr/lib/mailman/bin/withlist -a -r unban '^.*\+.*@.*' /usr/lib/mailman/bin/withlist -a -r unban '.*\+.*@.*' I did add a list_bans command as well /usr/lib/mailman/bin/withlist -a -r list_bans