Chapter 5. Message hygiene and security

A quick message-hygiene primer

Message security and protection in Exchange

Managing anti-malware scanning

Managing anti-spam filtering

Here’s a bit of a paradox: no one likes spam, and no one likes malware, and yet users and administrators have to wade through more and more of it every year. That is due to two reasons. First, for many companies, email has become the dominant means of communication with customers, but what a company sees as a marketing communication can appear as spam to the user. Second, spam and malware have both become major businesses in their own right; estimates of the impact of spam and malware vary so widely as to be meaningless, but it is fair to say that they have an impact in several ...

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