How do fix a good solution against spam..

[Slawek]

Hello!
In message to "Marian Hettwer" <Mh at kernel32.de> sent Thu, 13 May 2004 22:21:44
+0100 you wrote:

 >>> Not only it's way faster than perl based messagewall, amavisd and
 >>> mailscanner etc but it also has neat stuff like making connections
 >>> back to the sender's MX checking for validity of the sender's email.
 >>
 >> This Feature sounds interesting. How is it actually called in exim ?
 >> I'd like to check the exim docu to see some details, because it really
 >> sounds interesting.
 >>
 >> Could you provide me with some keywords to search for ?

 TB> In Exim you're looking for sender callout verification.

 TB> http://www.exim.org/exim-html-4.30/doc/html/spec_38.html#SECT38.21

 TB> It's pretty trivial to turn on, and in my experience works well.

One should be careful with source address checking as it may block mails in
e-mail discussion lists when source e-mail address is nonexistent. Using
things like "NO_SPAM" or "DELETE_THIS" in e-mail address is common (and
justified) in discussion lists.

-- 
Slawomir Piotrowski