Exchange Server Enterprise 2019 | Modern Software in CSP | Perpetual | Tenant ID Required | Commercial Business End User

Exchange Server Enterprise 2019 is a perpetual Microsoft software license offered through CSP for commercial business end users; it suits organizations purchasing this specific Exchange Server edition and able to provide a tenant ID for order processing.

Recommended For

• Organizations already running Exchange Server 2019 that need the Enterprise edition’s higher database limit: it supports up to 100 mounted databases per server, compared with five for Standard. Because Exchange 2019 is out of support, this is a legacy-deployment fit, not a general new-install recommendation.
• IT teams maintaining an established on-premises Exchange environment that needs native mailbox-database replication or site-resilience capabilities, and that has the staff and infrastructure to operate it. Exchange 2019 support ended on October 14, 2025, so plan for a supported successor or migration.
• Organizations keeping an existing Exchange 2019 deployment on-premises during a planned transition, where they already have the required Windows Server, Active Directory, and Exchange administration in place. The license alone does not provide ongoing Microsoft support for Exchange 2019.

Spec Summary