[rt-users] is the "first.m.last at foo.com" bug fixed in RT3?

[Mike Jackson]

Hi,
 I currently have RT2 and now that some users email addresses have
started to include a middle initial, e.g. first.m.last at foo.com, RT
bounces the messages with an error:

"No permission to create tickets in queue foo"

 Is this fixed in RT3? If not, then which file do I need to hack to fix
it? rt-mailgate?

Thanks,
Mike