Re: [exim] Spam from domain yahoo.com

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Autor: Suresh Ramasubramanian
Fecha:  
A: Silmar A. Marca
Cc: exim-users
Asunto: Re: [exim] Spam from domain yahoo.com
Silmar A. Marca wrote:
> I use callout verify, spf verify and all other methods, but the domain yahoo.com
> is 95% of received SPAM.
>
> Have a Mysql or other method to block email from yahoo.com only in "mx of
> yahoo.com"??? How to contact the administrator of yahoo.com to set a TXT of spf
> to yahoo.com???


try helo filtering - a lot of yahoo is forged into the helo

then use cbl.abuseat.org (or sbl-xbl.spamhaus.org) to filter email

you wont get to see yahoo email originating only from their MXs - they
have a rather more well developed network than that

but 99% of the yahoo spam you get will not have originated from yahoo's
systems or users

callouts are generally something that deserve to die a miserable death,
and they wont work with yahoo anyway (it runs qmail so the principle
behind callouts fails)

cbl and helo filtering should help you