Re: slow email validation problems

Valdis Klētnieks writes:
> Note that all these tools make the assumption that *some* people 
> *aren't* greylisting - some spam has to get through to prime the 
> DNSBL or DCC/whatever.
A spamtrap may pretend to greylist while actually reacting to the first 
delivery attempt.
Your point applies to any spam filtering techniques which involve 
gathering spam from real people'e email. I don't know how common that 
is any more... of the top of my head, all I can think of is the RABL.
Arnt