Protecting messaging services is an important part of any business messaging strategy. Vulnerabilities abound when you allow messaging traffic for delivery over the Internet. The scope of this guide will focus on email security although many of these concepts will also apply to other types of messaging. 

The email security market is maturing, but speed and breadth of spam detection, and management and reporting capabilities, continue to differentiate vendors. This paper will discuss what you need to know about spam filtering, outbound content filtering, and available email security solutions in various delivery models. 

This whitepaper discusses the dramatic cost savings that companies can realize by adopting a SaaS (Software-as-a-Service) model for email security versus an on-premises approach.