On 1/6/2012 3:05 AM, Eric Lemings wrote:

>       [root@myhost postfix]$ dig 2.0.0.127.zen.spamhaus.org. any
...
>       ;; ANSWER SECTION:
>       2.0.0.127.zen.spamhaus.org. 900 IN      A       127.0.0.2
>       2.0.0.127.zen.spamhaus.org. 900 IN      A       127.0.0.10
>       2.0.0.127.zen.spamhaus.org. 900 IN      A       127.0.0.4
>       2.0.0.127.zen.spamhaus.org. 900 IN      TXT     
> "http://www.spamhaus.org/SBL/sbl.lasso?query=SBL233";
>       2.0.0.127.zen.spamhaus.org. 900 IN      TXT     
> "http://www.spamhaus.org/query/bl?ip=127.0.0.2";

This means your queries should be working.

> It seems the new spam control measures in my Postfix configuration may 
> actually be working now.  The quantity has tapered off significantly after 
> the initial flood of spam which may have been queued up retries I'm guessing.

Bot spam engines never retry failed deliveries, and greylisting relies
on this fact to block bot spam.  Most snowshoe spammer hosts don't retry
either, by design.

Considering you just consolidated everything under
smtpd_recipient_restrictions, you should share "postconf -n" output
again so we can sanity check it.  Restriction order can be important,
sometimes critical.

-- 
Stan

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