On Tuesday 03 August 2004 14:53, Bob Apthorpe might have typed: > On Tue, 3 Aug 2004 14:32:59 +0100 Duncan Hill <[EMAIL PROTECTED]> > > It took about 1/2 an hour after Jeff posted that it was in WS before the > > local DNS managed to find a surbl.org DNS that had the record: > > [...] > > Note that this is where the delay of greylisting is supposed to help. > While a large fraction of spam-emitting hosts won't retry, a delay of > 30-60min gives the DNSBLs time to update from trap data. That's the > theory anyway.
Yep, and that's one reason I greylist :) Not much actually reaches my greylisting db due to other restrictions in place, but it does work effectively.
