Microsoft Exchange 2019 Enterprise CAL Device CAL without Services. The Enterprise CAL is sold as an add-on to the Standard CAL—to enable Enterprise CAL features, the user must be licensed with one Standard CAL plus one Enterprise CAL. The Enterprise CAL with Services also includes Exchange Online Protection (anti-malware and anti-spam services), plus cloud DLP in Microsoft 365.
Specification
Microsoft Exchange Enterprise Device Client Access License (CAL)
Add-on license (requires Standard CAL)
Device CAL (one per device)
Without Services variant
1-year Software Assurance
Academic licensing
OLP (Open License Program)
No level restriction