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How do we stop a Joe Job?

Posted on 2008-06-19
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Last Modified: 2012-06-21
It seems we're being targeted by a Joe Job.  I've looked around and it seems theres not much we can do to stop it, but I was hoping you experts here would have some good ideas.  

It seems most of them are being rejected internationally, which we don't send internationally so I've blocked most countries we don't send to.  This has really only helped a little bit.  

Any other ideas?
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Question by:maskedweasel
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Michael W earned 250 total points
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I recommend the following URL article and also looking at setting up a RBL as well for your Exchange server environment.

How can I configure Exchange Server 2003 to block spam?
http://www.petri.co.il/block_spam_with_exchange_2003.htm

Using RBLs in Exchange 2003
http://www.spamblogging.com/archives/000138.html
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by:Deebster
Deebster earned 250 total points
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You could add Sender Policy Framework (SPF) headers to your site's DNS.

This describes the servers you use to send email, so receiving mail servers can judge whether the email is really from you, and reject the mail and/or not send you a failed delivery message.

http://www.openspf.org/
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by:maskedweasel
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Well, I found a number of sites with options on how to combat joe jobs, none of them actually fix the problem to where they stop sending e-mails, it's pretty much impossible.  The SPF record is a fantastic idea, and we are using a number of RBLs in Xwall, so I'll award both of you points.
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by:maskedweasel
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These are very good suggestions.
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