Network Velocity provides Postini Email Protection Services to our clients. On a typical day we’ll process over 32,000 emails. Of those 32,000 emails only 5,000 will be delivered. That’s a delivery ratio of 15%.

We describe SPAM as a cat and mouse game. Postini has built the best mousetrap available, but the mice (SPAMMERS) are always fighting back. To share what we see from our console we’ve included a few screenshots of the email traffic we process. This sample was taken in the evening (between 8-9PM) so traffic is not as high as it would be during business hours.

In addition to best-in-class Email filtering Postini also provides up to the minute AntiVirus scanning of all email traffic.

Chart of email traffic for 60 minutes. The blue line represents mail that was actually delivered.

Pie chart of email for past 60 minutes. 18% of email was delivered for this one hour timeframe. At peak times the ratio of delivered email will be as low as 7%.

Raw statistics for 60 second interval. 882 messages processed, or ~15 per second!