On Wed, 24 Nov 2004, -ray wrote: > > The crucial thing to minimize impact is that once a given machine > > retries, you remember this and never greylist for that machine for 30 days > > or so. This gives you all the benefits while greatly mitigating delays > > of legitimate e-mail.
> When a machine retries, you whitelist that IP for 30 days regardless of > other sender/recipient pairs? Yes. If a machine retries once, odds are it will retry all the time, so it's pointless to greylist it. (The machine isn't actually "whitelisted", it's just marked "Do Not Greylist") > Do you whitelist the entire IP or the first 3 octets? Entire IP. Most organizations that have a pool of senders only have 5-10 machines, so they quickly get into the "Do Not Greylist" database. Regards, David. _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
