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EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK UPDATE
EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK SOFTWARE
EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK DOWNLOAD
EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK MAC
EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK WINDOWS

Too often, clients start to get certificate popups on Outlook or get disconnected. One of the mistakes made by IT admins is bringing in a new Exchange server and thinking nothing bad will happen. Just remember, if you have Exchange 2010 in your environment, you cannot introduce Exchange 2019 until migrations are done to a newer version of Exchange - for example, 2016 - and then decommissioning Exchange 2010. The process is exactly the same for having Exchange 2016 and Exchange 2019 coexist. This can be having Exchange 20 in the same environment or Exchange 20 coexisting or Exchange 20 running in the same environment. REG.Exchange coexistence has been around for a long time. To allow MAPI/HTTP remove the MapiHttpDisabled DWORD, or set it to a value of 0 as shown below: The protocol type has changed, and there is now a proxy server specified. In the below screenshot we can se that the client is now kicking it old skool. Deleting Outlook profiles causes OAB downloads, OST downloads, possibly adding PST files back into the profile and may also impact mobile devices. Deleting the Outlook profile would also force the change, but that is not recommend in production unless it is the last resort.

EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK UPDATE

Note that you may have to wait for Outlook to perform an Autodiscover request and automatically update itself, or alternatively run a profile repair to force a full Autodiscover. Note that MAPI/HTTP is being used:Īfter disabling MAPI/HTTP using one of the above methods, reg.exe or PowerShell, we can then look to see how Outlook is connecting.

(Note that the above are all one line that may wrap) Testing When MAPI/HTTP Disabledįor reference, Outlook 2010 connection information is show. New-ItemProperty -Path HKCU:\Software\Microsoft\Exchange -Name MapiHttpDisabled -PropertyType DWORD -Value “0x0” –Force New-ItemProperty -Path HKCU:\Software\Microsoft\Exchange -Name MapiHttpDisabled -PropertyType DWORD -Value “0x1” –Force Get-ItemProperty -Path HKCU:\Software\Microsoft\Exchange -Name MapiHttpDisabled | select MapiHttpDisabled | Ft –AutoSize We can retrieve the current configuration using the first two commands, whilst the third one disables MAPI/HTTP and the final command enables MAPI/HTTP: Get-Item HKCU:\Software\Microsoft\Exchange (Note that the above is one line that may wrap) Disabling MAPI over HTTP using PowerShaell Type or paste: REG.exe Add HKCU\Software\Microsoft\Exchange /V MapiHttpDisabled /T REG_DWORD /D 0x1 /F Double open the MAPIoverhttp_disable.reg file and it will add the above change for your.ĭisabling MAPI over HTTP using Command Prompt.ģ.

EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK DOWNLOAD

Download this file: MAPIoverhttp_disable.zipģ.

If the value is HTTP, delete the Microsoft Outlook profile, and then recreate it.ġ.

Verify that the value in the Protocol column is RPC/HTTP.

The Microsoft Exchange Connection Status dialog box appears.

Press Ctrl and right-click the Microsoft Outlook icon in the notification area at the far right of the task bar.

Verify that the protocol has been changed to RPC over HTTP.

In the Value box, type 00000001, and then click OK.

Right-click the MapiHttpDisabled entry, and then click Modify.

Right-click the new DWORD entry, and then click Rename.

Right-click Exchange, and then click New > DWORD.Ī new DWORD entry appears in the right pane.

EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK SOFTWARE

Expand HKEY_CURRENT_USER > Software > Microsoft > Exchange.

EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK WINDOWS

In Windows on the client computer, click Start, and then type regedit in the Search programs and files box.

Use the credentials for the Windows account that you defined in the agent properties.

Log on to the proxy client where you installed the agent.

It is preferable to disable the connection on that users computer only.

So rather than turning off MAPI for all their devices at the exchange server end. The issue this may have is that they could have other more recent devices such as phones and tablets that are enjoying the advantages of MAPI over HTTP. IN Exchange 2016 it is possible to disable MAPI for a users mailbox.

EXCHANGE 2016 COMPATIBILITY WITH OUTLOOK MAC

Our testing shows that later outlook versions and the Mac versions of outlook have no troubles at all.

It is reported that MAPI over HTTP which is a newer connection method of laterExchange servers and potential better and more reliable for devices connecting has some unreliabilities in some instances with earlier version of Outlook. The CTRL right click on the Outlook connection icon (bottom right) showed the connection was made with HTTP The user reported that outlook was slow to open email, and unresponsive with searching in outlook. Outlook 2013 connecting to Exchange 2016 with MAPI over HTTP enabled. In our case the versions in question were found to be: Outlook Slow and Unresponsive wiht MAPI over HTTP to Exchange 2016 Server