Many networks have no need for the robust directory services, calendaring and collaboration features found in sophisticated messaging products, such as Lotus Notes, Microsoft Exchange and Novell GroupWise. These products will save you money, they're quick and painless to set up, and management is easier. In our tests, we were up and running with each product within 10 minutes of crumpling the plastic wrap.
Scalability is another advantage.
Most of these products also claim to scale up to tens of thousands of users without much problem. Our testing focused on Web management and user interfaces, as well as SMTP security options and configurations. Each server was installed, configured and used as an enterprise mail server with users interacting with it on a daily basis. Gordano's NTMail 4.2 took top honors with its combination of Web management and user interfaces and a plethora of useful configuration options for SMTP, user-account restrictions and mailing list management. In particular, the aesthetic appeal and usability of their Web interfaces paled in comparison to those of NTMail.