Date: Sat, 24 Jan 1998 20:09:14 -0800 (PST) From: "Jonathan M. Bresler" <jmb> To: eboktor@compunetlink.com Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Help Message-ID: <199801250409.UAA10269@hub.freebsd.org> In-Reply-To: <199801250341.TAA23817@cnt1.compunetlink.com> from "M. E. Boktor" at "Jan 24, 98 07:42:29 pm"
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M. E. Boktor wrote: > I am a small ISP in California. I have recently found out that someone is > been using my SMTP (SPAMING) to send bulk mail messages. This person is > not one of m customers. How can I find who it is? How can I stop this > from happening? This is slowing down my server almost to a halt. I am > beginning to lose clients. can you help. > > I am running FreeBSD ver. 2.2.1, and sendmail.hf 8.11. > > Any help would certainly be appreciated!!! you need to stop them from relaying mail thru you. look at the antt-spam web pages referenced from www.sendmail.org you will need to create a class with all of your domains in the class. only accept mail sent to hosts in that class jmb
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