On 02/09, RW wrote: > A compromised webserver with full-circle DNS would be caught by this. > My point is that is the only class of spam that this could help with
Ah, sorry, I thought you meant mail server. Still, I don't understand why you're saying this. It would also block, for example, spam from a dynamic cablemodem IP. And everything that it didn't block could be blocked by blacklisting domains which have MTX records for spamming IPs. > Every thing else is either handled by full-circle and no DNS tests, Full circle DNS tests don't block spam from quite a lot of IPs. > or can be easily worked around by spammers setting their own dns. Spammers can't create DNS records for hostnames for IPs they don't own (don't have PTR authority delegated to them for). -- "Life is but a walking shadow, a poor player that struts and frets his hour upon the stage--and then is heard no more. It is a tale told by an idiot, full of sound and fury, signifying nothing." - William Shakespeare http://www.ChaosReigns.com
