Milter-greylist

On Fri, 2007-01-05 at 05:19, Oliver Fromme wrote:

> If the probability of a sending host having a real SMTP
> server is fairly high, then it doesn't make sense at all
> to waste a greylist entry for it and cause a delay,
> because it will resend anyway. It doesn't matter at all
> whether it is spam or not.

Greylisting allows the spamming host time to be listed in the RBLs.