Rick Hazey:
> My problem occurs when Postfix can't deliver an email, might be a
> non-existent email address for example. Postfix generates a bounce
> message for the sender but won't deliver it and complains that it
> "loops back on myself".
You have the same myhostname on multiple servers (Postfix logs
"host xxx greeted me with my own hostname), or you have the
MX record pointing to a host that is not the final destination.
grep the logfile for the PID of the SMTP client and show all
the records.
Wietse
