hrasmus Posted August 31, 2004 Share Posted August 31, 2004 I've heard of a sort of graylist system that should be very effective to reduse spam. Most virus infected computers is pc's with a non-intelligent SMTP agent that doesn't resend mails that has bounced. As I understand it, the graylist system on the receiving mail server first rejects the mail, but enter it in a graylist. If the sender computer resend the mail it is accepted. This has stopped a great deal of the spam we get in our mail boxes. Actually we almost don't get any spam anymore. Also, our postmaster have begun using SPF. Domain owners identify sending mail servers in DNS. SMTP receivers verify the envelope sender address against this information, and can distinguish legitimate mail from spam before any message data is transmitted. Does SpamCop use graylist and SPF? Henrik Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.