Microsoft Exchange Server 2013: Connectivity, Clients, and UM

A quick message-hygiene primer

It’s helpful to have a shared understanding of some basic concepts behind message hygiene, starting with the term itself. Hygiene, of course, connotes health or wellness; its use in this context means that the goal is to keep the message stream free of contaminants and infection and to take measures to limit the spread of unhygienic content. In common usage, the term message hygiene refers to the process of filtering both inbound and outbound messages to block harmful or unwanted content. This content can come in three primary forms: spam, phish, and malware.

Spam

Spam isn’t actually named after Hormel’s SPAM meat; it’s named after a semi-famous comedy skit by the British troupe known as Monty Python, involving Vikings ...