Tomasz Chmielewski wrote:
> Martin J. Boeck schrieb:
>> Hi!
>>
>> I was thinking about this some time ago. The problem would be, that you have 
>> to accept the message to scan it for a spam level with amavis. So you cannot 
>> reject it anymore.
> 
> No, you're wrong - just do before-queue filtering. For example, for 
> Postfix, you'll find instructions here (Postfix Before-Queue Content 
> Filter):
> 
> http://www.postfix.org/SMTPD_PROXY_README.html

Pre-queue content filtering is the worst of all worlds - you lose the 
benefit of pre-queue filtering by accepting smtp data while losing the 
benefit of postfix smtp scalability since you are putting a resource hog 
in the smtp process.  You do gain the marginal benefit of being able to 
reject spam that content filters find and smtp level tests do not 
identify, but many sites quarantine or discard or mark spam rather than 
rejecting, so this is only a benefit for some sites.


> 
> 


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