Greylisting with MailScanner, Sendmail, Spamassassin

[Ugo Bellavance]

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Michael Mansour wrote:
> Hi,
> 
> I'm using the latest version of MailScanner with
> Sendmail and Spamassassin (and pyzor and razor). 
> 
> I've just recently enabled DCC to support greylisting,
> but I can't see whether it's actually working or not
> and am not sure how to test it.
> 
> Under MailScanner, sendmail is run in background
> queueing mode, and the greylisting works (I think) by
> modifying sendmail to query DCC and if found to be
> "grey", rejects the message.
> 
> But MailScanner is the one that listens on port 25, I
> believe it then forwards the message to the virus
> scanner first? then SA? which uses DCC, razor and
> pyzor to determine whether the message is spam?
> 

No, MailScanner doesn't listen on port 25.  Sendmail does.  To do some 
kind of greylisting with DCC, you must configure the dccm (milter) 
component of DCC

> But the way greylisting is supposed to work is at the
> mailer level (no content scanning), so I'm wondering
> how we're supposed to get this running with
> MailScanner like this?
> 
> I appreciate any feedback.
> 
> Michael.
> 
> 
> 		
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-- 
Ugo

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