[Mimedefang] Bad RCPT Throttle in the Real World

[Kevin A. McGrail]

I was thinking my implementation would be more akin to greylisting since it
would only tempfail for a 5 minute period.  I wholeheartedly agree that
changing routes to completely block the IP are not a good idea though.

> I think it's too large a block to be feasible, for the reason's you
mention.
> Their are many ways in which you can cause collatoral damage.