Spam Trap Flow Statistics
These graphs are total email flow into one of our
larger (but not nearly largest) spamtraps.
This is intended to give a reasonably
representative indication of overall spam flow.
The Y axis is emails per second.
"5.0k" means 5000 emails/second.
For each 1000 emails/second this trap averages over
a day, the total is another 86 million emails/day.
For example, a 5000 emails/second average over a day represents
432 million emails per day.
The X axis is the date/time in GMT.
No attempt is made to distinguish spam from non-spam email
hitting the trap. For example, the total flow numbers will
undoubtably include "backscatter". Backscatter is where spam
is created with a forge sender address, and is sent to a mail
server that rejects the email by a bounce - to the forged
The CBL does not list IP addresses for this reason, but other DNSBLs
Generally speaking, more than 95% of the hits represented in
this graph result in a CBL listing.
One of the more important things to take away from these graphs
is the highly cyclic volume of spam being sent.
Note also the abrupt dip at Dec/Jan of 2010/2011, and March 2011.
The first was when the Rustock bot operator seemed to go on holiday
for almost two weeks. The second was when the Rustock bot was
The CBL and web pages are copyright ©
2003-2016, all unauthorized copying is prohibited