[Mimedefang] Catching the porn spams

[Matthew.van.Eerde at hbinc.com]

Kenneth Porter wrote:
> --On Thursday, September 09, 2004 10:33 AM -0400 WBrown at e1b.org wrote:
> 
>> That's an interesting idea! Query a DNS to see if xyz.com is known. 
>> If it  isn't, the DNS returns 127.0.0.1 and add it to the database. 
>> If it is  known, but for less than some time period - long enough
>> for them to make  it to black lists say 12 or 24 hours, return
>> 127.0.0.2.  If it's been  around a while, return 127.0.0.4.

What stops spammers from pre-registering a domain, and then pre-querying DNS?

Matthew.van.Eerde at hbinc.com                      805.964.4554 x902
Hispanic Business Inc./HireDiversity.com         Software Engineer
perl -e"map{y/a-z/l-za-k/;print}shift" "Jjhi pcdiwtg Ptga wprztg,"