Microsoft Exchange Server 2019 Enterprise CAL - license - 1 user CAL

Exchange Server 2019 uses available processor cores, memory and storage more effectively than ever before, as well as more intelligently managing internal system resources to help improve end-user performance. Exchange Server 2019 is more secure than any previous version out of the box, ensuring only the newest ciphers and hashing algorithms are used to protect your data. Exchange Server 2019 makes administration easier for common tasks such as calendar and delegate management.