Microsoft changes to EWSEnabled settings in Exchange Online
As of April 2025, Microsoft are changing how the EWSEnabled setting works in Exchange Online. These changes align with Microsoft’s plan to retire EWS in Exchange Online by October 2026.
To ensure that the Exchange Sync (WESS) continues to function without any interruptions, an Exchange Online Admin will need to verify that EWSEnabled is set to TRUE for users who connect via EWS at both Organisation and User levels. In order to do this, it is important to note you will need the following:
– Be an Exchange Admin and know your admin credentials
– Have access to Windows Powershell. Basic Powershell should work fine.
– Installed the module to connect to Exchange Powershell Online. If required, you can find information on how to do this via Microsoft documentation here.
Once the above pre-requisites are completed, please follow the below steps to complete these checks:
1. You will need to open Microsoft Powershell
2. Once loaded, you should see “PS C:\Users\name> “. When you see this, you will need to type the following:
Command: “Connect-ExchangeOnline -UserPrincipalName Your admin domain here”
4. Following entering your password, you should see the following text. When your username appears again for example “PS C:\Users\name> ” type in
Command: “Get-OrganizationConfig | Select EwsEnabled”
> Press Enter
7. If you then run the command from step 5 again,
Command:Â “Get-OrganizationConfig | Select EwsEnabled”
> Press Enter, the text should show as TRUE as shown in the screenshot from step 5.
8. To view this at User level, you will need to type in
Command:Â “Get-CASMailbox -Identity [user email addreess] | Select EwsEnabled”
(As shown below)
9. If at User level “EwsEnabled” is False or blank (I.E. Not True), follow these steps to correct this in Exchange Admin Center: Recipients -> Mailboxes -> (Select User) -> Manage email apps settings -> Exchange Web Services -> ‘Enabled’
In addition to this, if you would like to know more about the changes Microsoft are making, you can see them here.