Blog

Most email security product and solution vendors rely on on-going subscription fees from their customers for a major part of their revenue. This makes sense, since a good portion of the value proposition involves the on-going service and protection from newly evolving threats on the network. It is well known that email security is alsoRead more

In an earlier post, I had written about the various security measures to take to prevent losing your good reputation. But what happens if you find yourself on someone’s blacklist? What do you do? The first step is to carefully read the contents of the bounce messages returned by the blocking mail servers. Bounces typicallyRead more

Every time I do a setup with a customer, the question always comes up: Should we use Reverse DNS checking or not when configuring connection-level blocking security measures? What is reverse DNS lookup? Here’s a snippet taken from Wikipedia’s description: ‘Reverse DNS lookups for IPv4 addresses use a reverse IN-ADDR entry in the special domainRead more

Having a bad reputation might have seemed cool when you were a teenager, but if your email server has been given a bad rap, it’s definitely UNcool especially if your business depends on delivering email. Trying to get your reputation back can be time consuming and costly, so the best approach is to do yourRead more

By: Mike Ambrosone   With scandal after scandal involving employees stealing company data or releasing financial details, many companies have cracked down and are reading employee email. With many new laws coming into effect, and companies scrambling to meet regulatory compliance guidelines, it is important to remember that employees have rights too, and that theyRead more