[Mailman-Developers] Bug: Usernames with spaces

[Dan Mick]

Somehow I accumulated several users who had either embedded
(luser@hot mail.com) or trailing ('luser@hotmail.com ') addresses in
Mailman; bounce processing wasn't matching and therefore not working,
but outgoing mail still was, so I was still getting bounces.

Someone somewhere isn't (or wasn't) validating by removing spaces or
rejecting fields with spaces.

Thank you, clone_member.