double domain with virtual mail accounts

[foto-andreas]

Hi,

It seems that RoundCube will become my favorite webmailer. Looks really nice! Thanks!

But I have a little problem with my roundcube setup. I am using dovecot, exim4 on an ubuntu system.

An external MTA does not accept my mail. In the Exim log I see that after displaying the message id there is:

<= "[email protected]"@server.de

Where server.de is the canonical domain of the server and [email protected] is the username I use to login.

Tested the following: configuring to use PHP-mail works but displays on the receivers site as "www-data im Auftrag von [email protected]" which is not nice also.

Please give me a hint from which configuration variable the name after <= in the line above is created. Perhaps there is a problem with the quotes here?  

I enabled the smtp log but everything looks fine there.

Squirrelmail and Hastymail do not show this issue, so I think it is in roundcube somewhere.

Andreas