[Mimedefang] early experiences with grey listing

[Gary Funck]

> From: David F. Skoll
> Sent: Thursday, January 13, 2005 8:38 AM
[...]
>
> You'd have to spool the mail into some other queue that gets processed
> every so often, and set a MinQueueAge of an hour on that queue.  It
> seems way too tricky to me.
>

I agree.

Another question: How does CanIT (or other robust grey listing
implementations)
handle messages with no sender (ie, From <>) address?  How do you
distinguish
between a call back to validate an address/mailer, and a spammer getting
ready
to jam its message through?