On Sat, 12 Jul 2003, Tracy wrote: > OK, what I wanted to propose is having a flag that will: > > 1) Take the name supplied on the HELO/EHLO and > 2) Attempt to retrieve all MX records for that name - if the name supplied > is not a valid DNS name, or there are no MX records for the name, fail. > 3) Check to see if any one of the retrieved MX records match the connecting > IP address. If not, fail > > There is a movement afoot to propose a new RFC for the purpose of > combating/controlling spam by means of allowing mail transfer only from > machines which meet either of the following two criteria: > > 1) The name supplied to HELO has an MX record which resolves to the > connecting IP address > 2) The connecting IP address has a valid, specially formatted TXT record > associated with it (the details on exactly what the TXT record would > contain have not yet been settled)
This will be one of those things where 95% of good relays will fail in the beginning. And it'll be all but sure that everyone will conform. Let's see how evolves ... - Davide - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
