How to Choose Exchange 2003 SSL Certificate
To choose an SSL Certificate for your exchange 2003 server depends upon your requirements. But most suitable options are UCC & Wildcard SSL Certificates to secure Microsoft exchange 2003 server level communications.
UCC/SAN Certificate: (Unified Communications Certificates) were developed specifically to deal with the needs of an Exchange 2007 SSL environment, and are by far the most popular choice for Exchange SSL. UCC SSL Certificate secures your multi domain names like: