[dns-operations] negative caching of throwaway spam domains

[Brad Knowles]

At 5:48 PM +0000 6/21/06, paul at vix.com wrote:

>>  The question is, is there something I can do to, other than telling the
>>  mail filter machines to all use the same instance of bind to avoid this
>>  happening?

	I believe that there are some sendmail milters which help make 
this process a lot easier.  See some of the SnertSoft programs 
available through milter.org.

>>  Also, a bit off topic, but it occurs to me that this kind of information
>>  is useful in spam fighting. Are there any rbls out there that list all
>>  domains registered in the last 48 hrs?

	I know of some things going on behind the scenes, but I'm not 
going to talk publicly about them.  Interested parties can contact me 
privately, and I'll forward your messages to the appropriate parties 
who may then choose to contact you in reply.

-- 
Brad Knowles, <brad at stop.mail-abuse.org>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

  LOPSA member since December 2005.  See <http://www.lopsa.org/>.