paul at city-fan.org
Thu Dec 9 11:15:23 UTC 2004
Ow Mun Heng wrote:
> On Thu, 2004-12-09 at 02:54, Scot L. Harris wrote:
>>The SURBL option examines the URLs in the spam messages and checks
>>various block lists. If they show up on the block list the score is
> I was just asking that question. Thanks for clearing that up. So,
> effectively, it's just another form of greylisting then.
No, greylisting is a completely different thing. Greylisting ensures that the
sending server is a proper MTA that retries when it sees a temporary failure
during a delivery attempt. Most spamware does not do this, hence greylisting
stops lots of spam. SURBL is looking at the message body after delivery and
scoring it as likely to be spam or not based on the URLs found there. Two
completely different things.
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