> As per the example below, the only thing that is common is HELO
> linux.remotefirewalls.com.
> How do I stop receiving mails via such domain. Writing to the postmaster
> there might take a long time and the servers might change.
> I am using qmail 1.03 and Redhat Linux 6.0.
How about blocking the sender's IP in /etc/tcpcontrol/smtp.rules (or
where that is on your system) - just add a line
207.105.53.78:deny
and they will not be allowed to speak to your server. Another possibility
is locking them out with
ipchains -A -s 207.105.53.78 --destination-port 25 -j DENY
(assuming Linux)
-Johan
--
Johan Almqvist