On Mon, 2003-08-25 at 16:55, Michael Becker wrote:
I recently changed the e-mail address I used for the mailing lists to User:Mbecker@jumpingjackweb.com. This has seemed to hit some sort of error in the Mailman program. I am receiving e-mail to Mbecker@jumpingjackweb.com rather than User:Mbecker@jumpingjackweb.com.
According to my reading of RFC 822, colons are not allowed in email addresses unless they are quoted. So User:Mbecker@jumpingjackweb.com is not a legal RFC 822 _mailbox_. If I read the RFC correctly, <"User:Mbecker"@jumpingjackweb.com> is legal. I wouldn't be surprised if it gives some software gas, however.
(This is not to say there isn't a bug in Mailman. But I think the fact that the colon doesn't cause trouble with more MTA's etc. is just luck...)