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It was with a company in Europe and we got it with 50 users and wanted to upgrade to unlimited users. more» It helps us better control internal and external communications. 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.
Exchange 2019, along with Share Point Server 2019, enables Outlook on the web users to link to and share documents that are stored in One Drive for Business in an on-premises Share Point server instead of attaching files to messages.
For more information about deploying Exchange 2019, see Planning and deployment for Exchange Server.
Today, CPU horsepower is significantly less expensive and is no longer a constraining factor.
Outlook Web App is now known as Outlook on the web, which continues to let users access their Exchange mailbox from almost any web browser.
MAPI over HTTP is now the default protocol that Outlook uses to communicate with Exchange.