From: Jose Luis Araujo (jlaraujomercs.homeip.net)
Date: Mon May 03 2004 - 15:38:27 CDT

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Have you tried greylisting, i implemented it on the company where i
work and had a reduction of more than 90% in Spam and virus messages.

Postfix 2.1.x supports it:
http://projects.puremagic.com/greylisting/
http://www.postfix.org/SMTPD_POLICY_README.html

Works like a charm if you don't mind that the messages may be delayed a bit.

José Araújo

German Viera wrote:

> Hi every body,
>
> Some weeks ago I posted asking for spam solutions with postfix. Some
> colegues recomended SpammAssasin and map_rbl_domains to stop receiving
> spam. I used both, and they are working. the problem is that lots of
> spam is not correctly rate by spam assasing (even though i am using
> 4.0 as spam rate for SpammAssaing config) and the lists I had added in
> map_rbl_domain dont block them. they are :
>
> maps_rbl_domains = list.dsbl.org,
> relays.ordb.org,
> opm.blitzed.org,
> proxies.blackholes.wirehub.net,
> dev.null.dk,
> fresh.dict.rbl.arix.com,
> stale.dict.rbl.arix.com
> Can somebody give me some advise of what else could I do to stop spam.
>
>
> Regards ,
>
>
> German Viera

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