better blocking at MTA level (off-topic)

[Sergio Rabellino]

I'm very happy about greylisting.
I introduced it (smf grey -sendmail filter) one week ago and the spam 
shrinks by 90%.
Obviously we could/would pay the delay of the "first" email against the very 
high reduction of the spam.
Also my server runqueue goes from "uptime 8" to "uptime 0.6", more cpu for 
other  jobs....

Bye.
----- Original Message ----- 
From: "Koopmann, Jan-Peter" <jan-peter at koopmann.eu>
To: "MailScanner discussion" <mailscanner at lists.mailscanner.info>
Sent: Saturday, May 26, 2007 10:17 AM
Subject: better blocking at MTA level (off-topic)


Hi,

looking at todays 88% High Scoring Spam ratio I would like to block more
at the MTA level. What are relyable RBL services (commercial is fine)
that can be used? Or other methods besides tarpitting, pipelining tricks
etc. at MTA level (which we all do) that would reduce the load?

Or am I the only one suffering from massive attacks the past few days?
What are you guys using?



Kind regards

Jan-Peter Koopmann

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