Enterprise Edition can scale to 100 mounted databases per server. A mounted database is a database that is in use. A mounted database can be an active mailbox database that is mounted for use by clients, or a passive mailbox database that is mounted in recovery for log replication and replay. While you can create more databases than the limits described above, you can only mount the maximum number specified above. The recovery database does not count towards this limit.
Microsoft Exchange 2019 is the latest version of this popular email and calendaring software and includes many features to make productivity a safe and secure endeavor. This Enterprise version expands on the features found in the standard version, most notably with the ability to scale to 100 mounted databases per server. The standard version is limited to five databases per server. Exchange 2019 includes data loss prevention with more sensitive information types as well as enhanced auditing for better reporting and easier integration with third-party apps. The email inbox in this version is more personalized and has more intelligent features and faster search capabilities to allow your employees to get more done. Exchange 2019 Enterprise can be used on mobile phones, tablets, desktops, and the web, and this server powers the latest Outlook.
OS: Windows Server 2019 Standard or Datacenter
Memory: 128GB RAM
Free Disk Space: 30GB or more