Hi there
I have a Postfix installation (postfix-2.6.5-1.rhel5) and I relay a
couple of remote ip addresses
(static adsl) of remote sites.
I cannot figure out how a spam originator fired some e-mails through my
mail server
using a specific remote IP, which was relayed
Return-Path: <oqoxl...@hirewebdevelopersindia.com>
Received: from hhyllw (smtp.domain.tld[111.222.333.444])
by smtp.thessaloniki.gr (Postfix) with ESMTP id 8DB72180C1
for <jroc...@domain1.tld>; Mon, 1 Feb 2010 08:49:00 +0200 (EET)
Received: from beoeb ([xxx.yyy.zzz.ccc])
by EADYCSRY (8.13.4/8.13.4) with SMTP id u4231584378453i6Ib016100
for <jroc...@domain1.tld>; Mon, 01 Feb 2010 08:48:56 +0200 (CDT)
The 111.222.333.444 is the relayed trusted ip and xxx.yyy.zzz.ccc is the
malicious one.
How can I prevent such things?????
Thanks in advane
Dimitrios