Re: [exim] Denying spam with forged from

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Author: Knaupp, Thomas
Date:  
To: 'Patryk', 'Exim-users@exim.org'
Subject: Re: [exim] Denying spam with forged from
Hi Patryk,

> I've been running exim 4.96 + spamassassin very successfully over the
> last year, however recently a big amount of spam is received - because
> it forges the from field to my own hostname, which is of course in the
> whitelist of spamd (it has to be, a lot of traffic looks like spam but
> isn't).


what about adding your networks to the spamd whitelist instead of addresses?

Don't use
whitelist_from *@yourdomain.tld
as this can be easy forged

but use
trusted_networks 10.20.30.40
trusted_networks 20.30.40.50
....


Regards,
Tom



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