From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Adrian C." Subject: Re: possible SMTP attack: command=HELO/EHLO, count=3 (fwd) Date: Sun, 15 Oct 2006 21:40:36 +0300 Message-ID: <453280A4.4090107@snobu.org> References: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-admin-owner@vger.kernel.org List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: 'Linux Mail List' Welcome to the real world :) No really, have RBL checking w/ or w/o spamassassin and you're ok. If you don't use SMTP AUTH disable that too. --Adrian C. terry white wrote: > ... ciao: > > i'm starting to see a lot of the following. > > and i'm not thinking it a good thing ... > > > muedsl-82-207-247-115.citykom.de [82.207.247.115]: possible SMTP attack: > command=HELO/EHLO, count=3 > IGLD-83-130-135-36.inter.net.il [83.130.135.36]: possible SMTP attack: > command=HELO/EHLO, count=3 > bzq-88-153-185-136.red.bezeqint.net [88.153.185.136]: possible SMTP attack: > command=HELO/EHLO, count=3 > bzq-88-152-204-198.red.bezeqint.net [88.152.204.198]: possible SMTP attack: > command=HELO/EHLO, count=3 > 89.1.170.41.dynamic.barak-online.net [89.1.170.41]: possible SMTP attack: > command=HELO/EHLO, count=3 > >