Exchange Server 2019 was released in October 2019 with many new and interesting capabilities. For further information, please take a look at the What’s New information. Over the last few months, the Dynamics SMB team has been testing compatibility with this new version of Exchange Server, and we are now proud to announce that you can connect a Dynamics 365 Business Central on-premises deployment to Exchange Server 2019 so you can use Business Central as your business inbox in Outlook. The system requirements have been updated accordingly. Note that for the connection to happen, Tls12 must be set as a value in the customsettings.config file: <add key="SecurityProtocol" value="Tls12" /> For a full list of minimum requirements for Business Central, see the System Requirements for Dynamics 365 Business Central On-premises.