Postfix config error (due install)

[spr]

Hi

I've just installed ISPConfig along the "Step by Step" tutorial on Ubuntu Karmic.
All works realy fine, but I've got no "configure-screen" for postfix due the "aptitude install".
Because of that I've configured postfix using dpkg-reconfigure (before ISPConfig setup!).

Now I've a little Bug in my Postfix config...
I can send eMails from Thunderbird and Webmail (Squirrel and Roundcube) to an external account, GMail for example. But if I'm sending to a Mailbox which belongs to a Domain on the same Machine only the Mails from Webmail arrive!!
The ones I send out of Thunderbird are just lost in nowhere!

The connection-settings are all the same in external Client and Webmail...

What went wrong??

kind regards

spr

[falko]

Any errors in your mail log?