3 Dec
                
                    2003
                
            
            
                3 Dec
                
                '03
                
            
            
            
        
    
                5:29 p.m.
            
        Jeffrey Paul wrote:
Perhaps I'm being naïve, but this seems like a very good way to cause spammers to suddenly start having valid PTR RRs. Thoughts? or limiting attacks for relay/proxy/trojan purposes targets that have valid PTR records.... which of course ideally should be all of them.