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Spam characteristics appear in two parts of an email: the message header and the message content. Headers are important to examine because they show the history of the message delivery path as well as some common characteristics of spam. When a message is initially generated, it should include standard header fields such as From, To,Read more

In part 1, we looked at ‘How to Deploy a Spam Filter with Exchange‘, followed by Part 2 where we discussed ‘Three Ways to Configure a Spam Filter with Exchange‘. In part 3, we will look at Whitelists and Blacklists. Installing Exchange Server anti-spam components (for Exchange Server 2007 and 2010) can improve security byRead more

Spammers use common tricks to bypass the primary mail server security to spam an Exchange Server. One solution would be to install a separate spam filter to scan for and trap unwanted mail before it reaches the Exchange Server. There are a lot of products out there that claim to do the same thing. SoRead more

Data is at the heart of every business, but is your company’s data secure? The implications of data loss can be significant: from lost business to damage to your reputation. You must understand what is really at risk and then protect it.  Below are five key principles that you must remember when it comes toRead more

There are several ways to configure a spam filter with Exchange Serverâ„¢. Method 1: Place the spam filter in the DMZ With this method, the spam filter resides in the DMZ while the Exchange Server and other network resources are protected behind a firewall. The way the DMZ is configured can vary. Some clients setRead more