Microsoft Exchange Server 2019 Download [extra Quality] -

Once downloaded, the product remains in a trial state for 180 days unless a valid product key is entered to activate either the Standard (up to 5 databases) or Enterprise (up to 100 databases) edition. System Requirements for Deployment

Microsoft releases periodic updates (like CU14 or CU15 ) which are full installation media. For instance, CU15 (KB5042461) is one of the most recent versions available for download. System Requirements & Performance microsoft exchange server 2019 download