Question #164820 on mailman in Ubuntu changed: https://answers.launchpad.net/ubuntu/+source/mailman/+question/164820

kff drfg posted a new comment: remember that emails are primarily read on mobile devices at times when people are most likely to be checking their apps or emails on their phone. While desktop computers still see the highest rates of success, make sure that all of your messages are optimized for mobile devices as well, you can see demo here https://powerdmarc.com/