"." in virtual user names error

"Dennis Kavadas" <[email protected]> Mon, 19 Feb 2007 16:35:29 +1100
Newsgroups gmane.mail.spam.tmda.devel
Message-ID <[email protected]>
hi all

I've found a bug that causes tmda-cgi to error when trying to
authenticate and autoinstall virtual users with "." in there user
names

"[email protected]" will error but
"[email protected]" does not.

is there a workaround for this problem ?