Re: reject on: Not supporting null originator (DSN), dsn.rfc-ignorant.org

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Ralf Hildebrandt wrote:
> * Robin Lynn Frank <rlfrank@paradigm-omega.com>:
>=20
>=20
>>Actually, I think the answer goes like this. Every couple of months,=20
>>someone posts the question, "What to you folks use for RBLs?", and a=20
>>number of folks reply. The OP (and others) takes the reply that sounds=

>>best and cuts, pastes and watches logs. All is well until the first FP=

>>when OP discovers he knows nothing about the intent of the RBLs in his =

>>config.
>=20
>=20
> In that case wp.pl was a FP. Indeed. But these lists all should have a
> big disclaimer or explain how to use them AND how to craft exceptions!
>=20

Way back, when I knew even less than now (is that possible?), I used the =

old whois zone till someone this list got bent out of shape when he=20
emailed me, only to be rejected because his entire cctld was in the zone.=


The fact is that using RBLs that have a purpose other than blocking=20
actual spam sources, to block spam is illogical. True, a lot of=20
spammers are not rfc compliant. That does not mean that all=20
non-compliant mailers are spammers. Just as sending mail from dynamic=20
space does not make it spam.

People use the easiest solution first and migrate (hopefully) to the=20
right solution as they learn.

We only use two external RBLs now. One that is based on spamtrap and=20
dictionary spam and the other which deals with hijacked netblocks which=20
we do not have the resources to do ourselves. We no longer use lists=20
that depend on third party reporting. Our internal DNSBL/RHSBL is based =

on abuse, spamtrap hits, and dictionary spam, as well as regions and=20
ISPs where we have no need to receive mail *and* the ratio of spam to=20
ham is murderous. Where we need to receive mail, I provide a way to=20
receive it.


--=20
=C2=A9 Robin Lynn Frank - Director of Operations - Paradigm-Omega, LLC
Website: http://www.paradigm-omega.com/
RSS: http://paradigm-omega.blogspot.com/atom.xml
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Viagra cures Microsoft!


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