fake MX records

http://wiki.apache.org/spamassassin/OtherTricks this page mentions setting up fake MXes

Is this method relevant today too with a lot of spam being relayed through proper smtp channels

The page says the primary MX should not be accepting connections at all. Has anyone else tried this , will this cause delay in my mail

Thanks
Ram Received on Tue Aug 14 06:08:02 2007