Carsten Dietrich

When the subject of email security is mentioned, the first thought that comes to mind is spam or more appropriately anti-spam.

In the last six months, image-based spam has pushed its way to the forefront of spam technique discussions. Image-based spam is not new, but it is now wreaking havoc on the effectiveness of many anti-spam products.

At the height of its hype cycle, XML was supposed to solve the "interoperability problem," but in the end, only had a marginal level of success that was better than any other file format. In much the same way, many legacy spam detection techniques promised to rid us of much or all spam. Instead, they fell short of their promise and, in many cases, just did not work.

Anti-spam and anti-virus are undeniable necessities, but today's threat landscape has changed, requiring multiple layers of security technologies to keep business-critical email flowing. Email security is more than simply anti-spam and anti-virus. It's time to put true preemptive protection in email security.