I am trying to configure the mailserver, but not I am experiencing the following error when trying to send mail (from a Hotmail account) to my domain:
Reporting-MTA: dns;hotmail.com
Received-From-MTA: dns;mail.hotmail.com
Arrival-Date: Fri, 7 Nov 2003 14:13:40 -0800
Final-Recipient: rfc822;sjoerd@famwissink.nl
Action: failed
Status: 5.0.0
Diagnostic-Code: smtp;554 : Relay access denied
The server is behind a router / firewall. Does this have anything to do with this error?
Exactly which ports should be open on the router to have a fully functional web-, ftp-, and mailserver?