Should You Install Messaging Security Software on Your Exchange Server?
Source: Osterman Research
Security is the most single critical task for any email administrator. Starting with a foundation of anti-spam and anti-virus capabilities, organizations should focus on other capabilities, as well, including policy management and a variety of other tasks designed to protect the network and the company from external and internal threats. There are a number of ways to deploy messaging security, including appliances, software installed on dedicated servers, hosted or managed services and installation of software directly on the email server itself. While there are proponents and opponents of these approaches, there seems to be relatively strong opposition to the last approach on the part of many email administrators.