[sendmail] Skipping rbl per domain

Martin Hepworth martinh at solidstatelogic.com
Fri Nov 10 10:42:40 GMT 2006

Joost Waversveld wrote:
> Scott,
> This is exactly what I was looking for, great!
> I also looked at the solution of Steven Freegard, but that solution 
> needs an extra milter. This solution is 'standard' available in sendmail.
> I think we are going to integrate this in our systems....
> Thanks again!!
> Best Regards,
> Joost Waversveld
> Scott Silva wrote:
>> Joost Waversveld spake the following on 11/9/2006 8:50 AM:
>>> Hi to all,
>>> I've searched but I could not find an good answer...
>>> We have some mailscanners with a lot of domains pointing to them, which
>>> are very busy. At the moment we do not use RBL's through sendmail. We
>>> let Mailscanner (SpamAssassin) handle those lookups. This way every end
>>> user can choose what to do with the SPAM.
>>> To handle the load better we want to enable some RBL-checks through
>>> sendmail but we know some customers don't want that, because then we are
>>> deciding which mail could be deleted, and which not. If you get what I
>>> mean.
>>> Is it possible to enable the RBL-checks in sendmail per domain, so
>>> customer1 can use the function(s), but customer2 does not??
>>> Regards,
>>> Joost Waversveld
>> This might do what you want with some experimentation;
>> http://www.technoids.org/spamlovers.html

I'd look at  milter-ahead or sender-verification 
(http://smfs.sourceforge.net/smf-sav.html, which can also so recipient 
verification) so reduce your load too.

i drop over 66% of my inbound traffic this way.

Martin Hepworth
Senior Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300


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