[Dshield] Need some help testing

[Mar Matthias Darin]

Hello, 

Tomas L. Byrnes writes: 

> The problem here is that you are referring to an IETF draft, which means
> it is not even close to widely followed. 
> 
> The APL RR type was a draft for 3 years, but never made it into the
> spec. That would have been much more useful for filtering.

Here are a few links to others doing research in dynamic IP address 
filtering (from a simple search on Google): 

http://oregonstate.edu/net/spam/ 

http://www.windowssecrets.com/comp/060126/ 

http://www.spambouncer.org/aboutspam/filtering.shtml 


AOL's email banner: 

220-rly-mb01.mail.aol.com ESMTP mail_relay_in-mb1.9; Sun, 08 Jul 2007 
00:25:19 -0400
220-America Online (AOL) and its affiliated companies do not
220-     authorize the use of its proprietary computers and computer
220-     networks to accept, transmit, or distribute unsolicited bulk
220-     e-mail sent from the internet.  Effective immediately:  AOL
220-     may no longer accept connections from IP addresses which
220      have no reverse-DNS (PTR record) assigned. 


Non-reversable IP addresses are often considered dynamic.