mail problems ... username used to work now [email protected] work

neXus

Registered
Aug 17, 2001
4
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301
if we created some mail users we could use \"username\" as the login with the mail server mail.domain.com but all of a sudden about 24 hours ago it stoped working, now it works with [email protected]com as the login only ??

the server this happend is a rh 6.2, and it only happend on one server.. the others are fine ?