Matt, (pause while I put on my iron codpiece) this sounds like a good
place for an IMail implementation to use SPF records as self-defense.

It sounds like what you're looking for is a two-fer that maps valid
client space with valid domain names to detect spoofing, and HELOBOGUS
will only do part of the job.  Or am I just putting words in your mouth?

Andrew 8)


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Matt
Sent: Monday, April 11, 2005 2:54 PM
To: [email protected]
Subject: [Declude.JunkMail] HELOBOGUS only fails with non-local senders


I was scratching my head real hard on this one, but found the answer in 
the release notes and I think that given changes over time, our friends 
at Declude should consider revising how this limiting of the HELOBOGUS 
test works.

I noted in the release notes for 1.57 [Beta, 30 Jul 2002] that the 
HELOBOGUS "will now only be tested on non-local senders."  With the 
invention of WHITELIST AUTH, this is unnecessary for any server that is 
configured for this.   Zombie spammers and viruses will often enough 
forge a local sender in the Mail From along with using bogus HELO names,

but the HELOBOGUS test won't trigger in that event due to this old fix.

I agree that at the time this was totally necessary just like disabling 
DUL tests for local senders was, and the only method that could be used 
was checking the Mail From, but for systems that can whitelist all local

users, it would be beneficial to have the added value of these tests 
under these conditions by way of a switch in the config file.  I would 
imagine that the switch would be in the form of something like 
"LOCALHELOBOGUS ON" and "LOCALDUL ON".  I believe that the DUL part has 
been discussed before and possibly agreed to that it was a good idea for

a future revision.  I would hope that the same consideration could be 
given to the HELOBOGUS skipping of local senders.

Thanks,

Matt

-- 
=====================================================
MailPure custom filters for Declude JunkMail Pro.
http://www.mailpure.com/software/
=====================================================

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