Microsoft Corp. MPSA Exchange Server Standard User CAL License Only Level D

This is a client access license (CAL) only. It grants users or devices access to the Microsoft Exchange software (sold separately). The Exchange Standard CAL is designed to help users be more productive from virtually any platform, browser, or mobile device—while helping protect your organization's data. To enable Standard CAL features for a user, the user must be licensed with the Standard CAL.

Exchange Server 2019 brings a new set of technologies, features, and services to Exchange Server, the messaging platform that provides email, scheduling, and tools for custom collaboration and messaging service applications. It helps you collaborate on your critical documents and gives you a focused inbox that prioritizes important messages and adapts to your work style, so you can get more done—faster.