Re: slow email validation problems (was reject vs bounce)

If anyone is thinking of doing that sort of thing, I would recommend 
putting a fast host in front of the slow one. We do that at work, and 
it works well.
Our fast host rejects most spam, quickly about it, and forwards mail 
locally via LMTP. The LMTP server may take an awfully long time to 
accept mail, but that isn't a problem, because we've configured its 
only client to be generous about timeouts.
Arnt