On Thu, Mar 02, 2006 at 03:38:09PM +0000, Constantine A. Murenin wrote: > Graham, > > You seem to have some contradicting views on the matter. What is the > difference between greylisting and the aforementioned spamtrapping > approach? Isn't it essentially a variation of the very same thing, > namely the use of 450/451 smtp error codes so that the broken MTAs can > go and relax? :-)
Greylisting (which I use) defers (almost) all incoming mail for a period of time. His trick (which is awesome) only defers mail when his primary MX is down anyway or the sender is misbehaving by going to a higher preffed MX. I may have to add this to the arsenal. Nice one, Graham.
