The MCSA: Messaging certification is a specialized certification, which validates your proficiency with Microsoft Exchange 2003 Server. This certification is for professionals who implement, manage, and troubleshoot existing network and system environments based on the Microsoft Windows Server 2003 Operating System. MCSA 2003: Messaging certified professionals typically do not deploy new networks and systems as part of their job function as is expected of individuals holding the MCSE certification.

The job roles for MCSA 2003 : Messaging certified professionals typically include: systems administrator, network administrator, information systems administrator, network operations analyst, network technician, or technical support specialist.

To get MCSA: Messaging certification for Microsoft Windows Server 2003, you have to take three mandatory Core tests (Two Networking System and One Client Operating System test) and one messaging specialization test.