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[Kadlecsik Jozsi <kadlec AT sunserv.kfki.hu>]

On Wed, 21 Mar 2007, Akos Bencsura wrote:

> A default configgal hasznalva azaz
> # Update spamtrap table with clients performing DHA
> policy_dha =
>         unknown:recipient
>         and_group:begin:default=reject
>         # If we have seen sender more than three times in 20 seconds
>         # trying to send message to nonexistent addresses, add to
>         # the blacklisted hosts. The default value of the end block
>         # is reject, so a 'dunno' from counter won't give false
>         # value.
>         counter:client_address:table=spamtrap:limit=3:time_period=20
>         update:client_address:table=blacklist
>         and_group:end
>         550 <{$recipient}>: Recipient address rejected: user unknown
> 
> Egy ido utan a spamtrap adatbazis tobb tizezresre nott es gyakorlatilag
> minden bejovo emailt kiszurt a rendszer. 

Nalunk ebben a pillanatban 43147 host szerepel a dha tablaban. 
Az eles konfigban kicsit egyszerusitve hasznaljuk a dha-t a fonti 
peldaval szemben:

policy_unknown_recipient =
        unknown:recipient
        
counter:client_address:table=dha:limit=5:time_period=3*60:match=reject:nomatch=reject
        550 <{$recipient}>: Recipient address rejected: user unknown

policy_dha =
        counter:client_address:table=dha:check:limit=5
        550 Too many probes, access denied.

Igy eleg egyetlen tabla a dha ellenorzeshez.

Udvozlettel,
Jozsi
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