⟩ What is the difference between Exchange 2003 Standard and Exchange 2003 Enterprise editions?
Standard Edition:
* 16 GB database limit
* One mailbox store
* One public folder store
* NEW: Server can act as a front-end (post-Beta 2)
Enterprise Edition:
* Clustering
* Up to 20 databases per server
* X.400 Connectors
Both Editions support features such as:
* Database snapshot
* OMA and ActiveSync
* AirMAPI
* Recovery Storage Group
* Exchange Management Pack for MOM
* Note: It is not possible to in-place upgrade Exchange 2000 Enterprise Edition to Exchange 2003 Standard Edition.
