Date: Fri, 19 Aug 2005 13:08:29 -0600 From: Danny MacMillan <flowers@users.sourceforge.net> To: aj@siegel-tech.net Cc: freebsd-questions@freebsd.org Subject: Re: SPAM Problem Message-ID: <43062E2D.5030006@users.sourceforge.net> In-Reply-To: <200507231237.44829.bulk_mail@siegel-tech.net> References: <200507231237.44829.bulk_mail@siegel-tech.net>
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Aaron Siegel wrote: >Hello > >This message is off topic but I was not sure were else I can go to get help >with my problem. For the past week I have been receiving messages from >various mail servers which have bounced messages I have not sent but have my >email address as the originator of the bounced message. I believe there are >some SPAMers using my email address on their SPAM. I would really like to >avoid changing my domain name. Has anyone experienced this problem? Is there >something I can do? > >Thank you >Aaron > > What you can do to partially combat this problem is publish SPF records for your domain. That will cause spam filters on cooperating mail servers to drop email claiming to be from you that comes from anywhere but one of your mail servers. Since the messages will be dropped, they won't generate notices of non-delivery. I guess this assumes that the mail servers that generate the non-delivery notices check SPF records on inbound mail, which on reflection doesn't seem too likely, but it might help a little. If this kind of problem bothers you you can also configure your own mail server to check SPF records on inbound mail. This won't directly address your problem but it does reduce the effectiveness of joe-jobbing as more and more people do it. -- Danny MacMillan
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