> What port is Postfix listening? If it is listening on port 25, change
> it to 125 or so. Set smtpdestination in ASSP to 125.

Hmm... Fritz; let's suppose for a minute the machine has
multiple IP addresses (and/or network cards for that)
and that ASSP is bound to IPx:25 while postfix is bound
to IPy:25 even with such a config, postfix should NOT
see email coming from 127.0.0.1 !

At any rate, I totally agree with your suggestion ONLY
ASSP should be listening on regular ports (the only
exception being having postfix listening on a "regular"
port but ONLY bound to a private, unroutable IP)

I wonder if the ASSP relayport may be "exposed" to
the WAN and not just visible from the local postfix, in
such a case someone may be using such a port to
send in spam bypassing the ASSP filtering and making
it appear as if coming from 127.0.0.1


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