I think this a mail system configuration issue not a mailman bug. Besides, this is a Ubuntu bug tracker, and I don't think SourceForge runs their mailman install on Ubuntu. ** Changed in: mailman Status: New => Invalid -- can't subscribe - does not like recipient https://bugs.launchpad.net/bugs/266275 You received this bug notification because you are a member of Mailman Coders, which is subscribed to GNU Mailman.