On 4/9/10 1:33 PM, Rodolfo Gonzalez Gonzalez wrote:
> Hello,
>
> Michael Scheidell wrote:
>    
>> amavisd can be configured to only bounce back if spf/dkim signed.
>>      
>
> How can be this done?
different issues, and I thought amavisd-new had an 'auth bounce limit' 
but I can't find it now.
> I'm also getting a lot of spam from forged
> addresses in my domain, most of it being stopped by DNSBL checks at
> postfix, but some high percentage of those spam messages still pass
> those checks. I use $final_spam_destiny = D_REJECT, which is supposed to
> send a 500 message back to the server,
doublecheck that.  that only works if you have amavisd-new in 'prequeue' 
(eg milter) mode.
read amavisd.conf-sample

> 1) If the message from my domain is dkim signed and optionally from a
> SPF allowed host, then it is passed.
>    
Use your MTA to send it to a different port using a different policy.

> 2) If it's not dkim signed or SPF allowed then it gets bad points and it
> is checked for additional spam characteristics and finally rejected.
>
>    
amavisd-sa already would do this.

> How could be this achieved? Any hint is appreciated.
>
> Thanks,
> Rodolfo.
>
>
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-- 
Michael Scheidell, CTO
Phone: 561-999-5000, x 1259
 > *| *SECNAP Network Security Corporation

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