MainSleaze

Here’s how the various email service providers (ESPs) rated on our “hitting spamtraps” scale in January 2015:

January 2015: Spam Sent from ESPs to our Spamtraps

Things to keep in mind:

• Our spamtrap collection does not represent the whole world, and it has numerous biases with regard to certain regions. It is hardly representative of “The World”.
• Mail sent by ESPs amounts to approximately 1% of all mail seen at these spamtraps. But then again, the CBL mostly keeps the botnet stuff from reaching anything resembling a regular inbox. ESP mail is mostly not blocklisted by anyone. Having said that, it is still several thousand messages per day.

Make of it what you will.

NOTE: Reformatted not to break the blog on lower-resolution screens. 🙂