I have some issues with postfix.
Afster installing ISPConfig3, i've created a Client, an E-mail domain and an E-mail user. (mail_domain and mail_user are available in the MySQL tables)
The mail-user is active.
Somehow, Postfix does not accept messages to the mail_user in the mail_domain.
I'm not new to Unix/Linux, but untill today I was a Sendmail user, and I'm not used to finding issues in Postfix yet.
Can anyone give a hint where to look for?
Thanks in advance!