sender rejected

[Carsten Burghardt]

Hi all,

I have multi domain setup where all users are identical. So i added  
the additional domains in the virtual table as @domain2.com @domain.com
However if I try to send a mail as me at domain2.com the sender is  
rejected. If I add me at domain2.com as an alias to the user (in the  
addressbook) it works. I do not really understand this but maybe  
somebody can shed some light on this.

Regards
Carsten