[cobalt-users] Cannot login to mail

["list" <list@xxxxxxxxxxxxxxxxxxx>]

Hi all,

I have a Raq550 configured with 4 virtual sites.

1: http://www.blabla.nl
2: http://webmail.blabla.nl
3: http://www.test.net
4: http://webmail.test.net

Under www.blabla.nl I've created 1 user named test, and under www.test.net I created a user called test2,
When I try logging to my email with username test at www.blabla.nl everything goes wel,
but when I try logging in on www.test.nl with username test2 I get an error message:

The message could not be sent because the server rejected the sender's e-mail address. The sender's e-mail address was 'test2@xxxxxxxx'. Subject '', Account: '80.127.17x.xx', Server: '80.127.17x.xx', Protocol: SMTP, Server Response: '553 5.1.8 <test2@xxxxxxxx>... Domain of sender address test2@xxxxxxxx does not exist', Port: 25, Secure(SSL): No, Server Error: 553, Error Number: 0x800CCC78

When I try sending a email to that user I get the following error:

 ----- The following addresses had permanent fatal errors -----
<test2@xxxxxxxx>
    (reason: 550 5.7.1 <test2@xxxxxxxx>... Relaying denied.  Please check
your mail first or restart your mail session.)

   ----- Transcript of session follows -----
... while talking to mail.test.net.:
>>> RCPT To:<test2@xxxxxxxx>
<<< 550 5.7.1 <test2@xxxxxxxx>... Relaying denied.  Please check your mail
first or restart your mail session.
550 5.1.1 <test2@xxxxxxxx>... User unknown

I really have no clue where the problem might be, I've tried several things but none of them work.

If I need to send more info please let me know, I'd be happy to give you.
All ipadresses and domainnames have been changed.

Regards,

Ronald.