Spamhaus Unblocks Mail from Amazon EC2 – Sort of

October 20th, 2009 by Rebecca Herson | Category: IP Reputation | View Comments

Spammers excel at coming up with new tricks to bypass email filters, and in the last week or so, their latest trick was to distribute their messages via Amazon’s EC2 cloud service.  As a result, according to this article on SearchCloudComputing, the well-known global real-time block list Spamhaus blocked the entire EC2 range, which meant [...]

A few Words about the Commtouch Milter

What is a Milter?
Sendmail and Postfix are the most popular open-source mail transfer agent (MTA); Sendmail has both free and commercial editions.
Due to the emergence of threats and unwanted content such as viruses and spam, a need arose to filter those messages closer to the perimeter, before they reach the end-user mailbox; however, since both [...]