Exchange Server 2007 Question:

Exchange Server 2007 is offered in two server editions: Standard Edition and Enterprise Edition. Exchange Server 2007 Standard Edition is designed to meet the messaging and collaboration needs of small and medium organizations. It may also be appropriate for specific server roles or branch offices. Exchange Server 2007 Enterprise Edition, designed for large enterprise organizations, enables the creation of multiple storage groups and databases. For more information about Exchange Server 2007 editions and Client Access Licenses