Spam blocking with greylisting

Spam blocking with greylisting

Posted Jun 27, 2003 17:31 UTC (Fri) by madmakis (guest, #1030)
Parent article: Spam blocking with greylisting

I run the mail system for a medium-sized business and am sure that such delays
would cause real complaints from our users.

On the other hand, it seems to me that the objective in Greylisting is simply to
establish that we're dealing with a real SMTP compliant MTA. So If I can put
together a list of MTAs known to me and whitelist that beforehand, then
automatically and permanently add new validated entries to the Greylist's whitelist
of MTAs, we would see neither the colapse of mail relays nor more than "1st time
seen" delays for the rest of the mail.

I also don't see the need for the triplets. The sender and receiver addresses seem
redundant if we're just testing for MTAs. There are also quite a few not-so-compliant
MTAs out there.

---

(Log in to post comments)