Matt:

Thanks.  I have been looking at setting up a gateway filter.  Thanks for
your recommendations.

Chuck Schick
Warp 8, Inc.
(303)-421-5140
www.warp8.com



-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matt
Sent: Friday, July 21, 2006 4:42 PM
To: [email protected]
Subject: Re: [Declude.JunkMail] Forged from local domains.


Chuck,

Yes, you can make a version of SPAMDOMAINS that lists your own domains 
figuring that your own customers will be whitelisted for AUTH or IP and 
therefore not hit by that filter.

IMO, even though they are forging addresses and their content may be 
spammy, those two things don't necessarily represent the best way to tag 
such guys.  Gateways that tarpit or greylist like ORF and Alligate will 
block virtually zombie spammers with minimal effort, and if configured 
properly, without false positives.  I only currently know of one zombie 
spammer that defeats greylisting, and a good number of them fail when 
tarpitted.

Matt



Chuck Schick wrote:

>I am starting to see a lot of spam email that uses the recipient domain 
>in the from address.  So if the mail is going to 
>[EMAIL PROTECTED] the from address may be something like 
>[EMAIL PROTECTED]  Is there any declude test to see if the sender 
>is valid for local domains???  I thought I remembered something about 
>the spammers using a wildcard to just fill in the recipient domain for 
>the from address - seems like there should be a method to block this.
>
>Chuck Schick
>Warp 8, Inc.
>(303)-421-5140
>www.warp8.com
>
>
>
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