Hallo. I tried the Howto, but i have a problem with the postfix-part. When I execute the "newaliases" command, which is executed during the install process, i get an error: "newaliases: fatal: myorigin parameter setting must not contain multiple values" and my domain and localhost is listed. Whats wrong here? I did everything like posted in this howto. But i changed the line which is added in the comments. Any help? Thanks.