> > The problem is, that I can send mail to the listener on
> > 192.168.xxx.xxx on port 25, but that it is passed to the
> > postfixfilter. My question is, how can I completely turn off
> > contentfiltering for all mail received on 192.168.xxx.xxx and why
> > does the "-o content_filter=" option turn off contentfiltering for
> > the listener on localhost and not for the one on 192.168.xxx.xxx?
I have two servers with identical configuration. During debugging I
found, that only one of the two servers suffers from this problem. A
diff on the two main.cf revealed the cause.
On the server with the problem the address of the 192.168.xxx.xxx
listener was listed in the inet_interfaces. It seems that in this
case the definition of the "smtp" listener has a higher priority.
After removing the address from inet_interfaces everything works now