On Mon, 03 Jan 2005 13:47:44 -0800, [EMAIL PROTECTED] wrote:
>By the way, we reject messages that score above 10 with a 550. We found >that almost 95% of spam scores over 10, and almost zero ham scores above >five. Messages scoring between 5 and 10 are accepted, tagged, and >relayed to their recipient. We definitely don't frown on rejecting >messages with high scores. I believe rejecting most spam with a 550 at >the internet gateway has been responsible for the amount of spam >addressed to our domain dropping by over 50% since we started rejecting >in March 2004. We have not had a single complaint from our users, even >about any false positives in the 5-10 range tagged by SA. > >I posted earlier today about a recent 25% drop over the past month. In >January 2004 we averaged more than 200,000 messages a week, over 90% >spam. Last week we got 80,000 messages. Some people suggested that it >was due to the holidays, but it was a fairly steady decline starting in >late November, so it may have been something else. I hope it doesn't >ramp up again, but who knows, maybe it was the holidays after all. I'll >post an update next week unless anyone objects. If you can get away with the delay, greylisting does an amazing job. I get almost no spams with it enabled. Unfortunately, even though it's sent to request a retry after 30 seconds from the sender, some senders can take up to three hours before retrying. -- Steve
