Filipe Miranda <filipe.miranda@???> (Fr 12 Jan 2007 00:02:08 CET):
> Hello,
>
> I'm reading the documentation on Exim's websie and I would like for Exim to
> Reject messages from senders listed in this DNSBL :
> blackholes.mail-abuse.org
>
> What would be the correct way to add this to my exim.conf file? (I'm new to
> exim's MTA configuration file)
>
> I added the line bellow just after the begin acl:
> deny dnslists = blackholes.mail-abuse.org
>
> Will that do the trick? or what would be the correct implementation?
>
> Also, what other hints would you recommend to fight SPAM?
DNSBL are a good starting point.
Other points to think about are
. verification of reverse DNS¹
. helo verification¹
. strict sender/recipient verification²
. greylisting²
. content scan²
. delays
Which of these points is appliciable to which extend, heavily depends
on your own feeling, position the phase of moon ;)
We use ¹) for delays in the connection and ²) for refusing the messages.
Best regards from Dresden
Viele Grüße aus Dresden
Heiko Schlittermann
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