Microsoft Exchange Enterprise Client Access License (CAL) with Software Assurance under Open Value licensing. This is an add-on license that provides advanced compliance, unified messaging, and integrated archiving capabilities for Exchange Server, plus Exchange Online Protection services.
Specification
License Type: Additional Product User CAL
Licensing Model: Open Value License (OLV)
License Level: Level D
Coverage: 1 User
Service Duration: 2 Year
Includes: Software Assurance and Services (anti-malware, anti-spam, cloud DLP)