I know that most (90%+) email sent now is spam, but what are the numbers for people who use spam filtering?
I realize it varies by user, sensitivity to false positives, tools used, etc, but do people who use spam filtering find that only 10% of the messages they receive are spam? 25%? 50%? higher? I'd like something quasi-official if possible, so I can tell my bosses: according to this report, even with diligent spam filtering, xx% of the email people receive is still spam. If fewer than xx% of your email is spam, we're ahead of the curve.
