[exim] Spam Filtering / dnslists

Hello MailAdmins,

It's obvious spammers keep on evolving and spam filtering technologies keep
being improved.
I am seeing situations where even sender verification is becoming mote,
because spammers have setup systems that pass the verification.

So, I have to ask what people are using these days when it comes to
dnslists?
And what other tools/tricks are in use that would help fight spam?

Thank you.


--
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
"Oh, the cruft."