Hi, I created a mail forward in ISPConfig to a eMail on the same server (also created with ISPConfig). I tried to forward it to the eMail email@example.com -> did not work. So I tried to forward it to webX_testuser@mydomain.tld -> works! When I forward to an external email it also works. So why does it forward the mail correct when I use the username (webX_testuser@mydomain.tld) but not when I use firstname.lastname@example.org? So that was the first one, now the second one... In the header is the following spam report: The IP comes from here: Is this just because my current IP (dynamic from my provider) is on a blacklist? Or is there a failure in my config? Greetings.