9 messages in net.sourceforge.lists.courier-usersRe: [courier-users] RBL Check - When?
FromSent OnAttachments
Gordan BobicOct 20, 2007 12:45 pm 
Sam VarshavchikOct 20, 2007 1:03 pm 
Gordon MessmerOct 20, 2007 1:44 pm 
Gordan BobicOct 20, 2007 4:03 pm 
Leigh S. Jones, KR6XOct 20, 2007 4:56 pm 
Gordan BobicOct 20, 2007 5:26 pm 
Leigh S. Jones, KR6XOct 20, 2007 5:34 pm 
Gordan BobicOct 20, 2007 5:50 pm 
Alessandro VeselyOct 21, 2007 11:11 pm 
Actions with this message:
Paste this link in email or IM:
Paste this link in email or IM:
Atom feed for this thread
Paste this URL into your reader:
Subject:Re: [courier-users] RBL Check - When?Actions...
From:Leigh S. Jones, KR6X (kr@kr6x.com)
Date:Oct 20, 2007 5:34:31 pm
List:net.sourceforge.lists.courier-users

----- Original Message ----- From: "Gordan Bobic" <gor@bobich.net>

kr@kr6x.com wrote:

No one has mentioned that it's necessary to wait until the possible spammer identifies his target to know whether the target has him whitelisted.

Gordan wrote:

Whitelists aren't really practicaly on big setups. You need to block a lot before they even get as far as talking TCP. If you can manage a decent job with that, RBLs can prune enough of what's left for spamassassin and virus scanners to be able to cope with the minute amount of mail that is actually deliverable. It is not all that uncommon to see the spam:ham ratio of around 250:1. When you have a system handling mail for half a million domains, well, you get the idea.

Whitelists aren't really practicaly on big setups handling mail for half a million domains. Ahhh, but nonetheless they are a part of the Courier algorithm...