Hello, > It seems to me that if we make all MTA's register somehow > (both SMTP and > POST), this would eliminate the hijacked machine as spambot > phenomenon. We > already have MX records for SMTP, but a lot of providers use > different > machines to receive (via SMTP) and send mail (POST). So, > maybe a new DNS > record is introduced for POST. Your machine(s) could do both > or not. When > your server goes to accept a message, it looks to see if the > IP of the > sending machine is listed in this new DNS record. If not, > return a 5XX error.
Hell, this just means that before spamming, people will also have to break DNS ... or am I missing something ? > Didn't I read something somewhere about the possibility of this? The whole thread titled "Akamai"... :-( Regards, Paul _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
