Spam Filter - it’s true when they say 85% of all email is spam.
Rounded figures from one of our spam filtering servers on a weekday in May 2008.
40,000 email transactions.
32,000 emails blocked by a combination of RBL Blacklists and Greylisting.
Of the remaining 8000 emails, 2000 were deleted by the SpamGate System.
6000 emails delivered.
6000 out of 40,000 is 15% thus 85% of the email coming into this server is spam.