Organizations that migrate to Exchange 2019 will benefit from functionality not available in previous versions of Exchange Server. What features does Exchange Server 2019 have? On other cases, there may be an integration constraint that mandates the use of Exchange Server to communicate with the messaging platform.
There are many reasons why some customers may still be interested in this upcoming upgrade rather than move to Exchange Online.įor some, on-premises Exchange Server satisfies data storage requirements where information must be retained within the firewalls of the organization. Why some organizations stay with on-premises Exchange Server This guidance for Exchange Server customers is meant to ease the transition to Exchange vNext, expected sometime in the second half of 2025, because in-place upgrade will not be available for other Exchange versions. However, as the upcoming version of Exchange vNext gets closer, Microsoft is recommending organizations plan to migrate to Exchange 2019 soon and move from older versions of Exchange. Right-click MapiHttpDisabled and then click Modify.Ĭhange the Value data to 0 and then click OK.įor more information about the requirements for MAPI over HTTP connections, see MAPI over HTTP.Despite the popularity of Exchange Online, many organizations opt to retain Exchange Server on-premises, some using a hybrid mode where some services run locally and others in Microsoft's hosted email environment.
Locate and select the following key in the registry: HKEY_CURRENT_USER\Software\Microsoft\Exchange Windows 7: Click Start, type regedit.exe in the search box, and then press Enter.Windows 10, Windows 8.1, and Windows 8: Press Windows Key + R to open a Run dialog box.Open Registry Editor by using one of the following procedures, as appropriate for your version of Windows: This registry data is intended for testing purposes only. To resolve this problem, change the value of MapiHttpDisabled to 0 (zero) or delete the MapiHttpDisabled DWORD value. This problem can occur if the MapiHttp feature is disabled on the Outlook client using the following registry value: Key: HKEY_CURRENT_USER\Software\Microsoft\Exchange MAPI/HTTP connections are designated in the Protocol column using the string HTTP.Īdditionally, if MAPI/HTTP is disabled, Microsoft 365 users receive a Basic Authentication prompt instead of a Modern Authentication prompt.
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