Knowledgebase: Troubleshooting
OAuth login for Microsoft Office 365 / EWS accounts
Posted by Olivia Rust on 10 July 2020 10:54

Attention: These solutions can only work with eM Client 8.0 or newer versions, they will not work for legacy versions of eM Client.

eM Client supports MFA/oAuth login, but the pop-up window for this authentication method will not be allowed to be used by default on your device.
That is why the login method will not work natively for now, but we have prepared workarounds to help you out:

eM Client for Windows

  • Download the attached registry file in this article.
  • Run it while eM Client is still closed and confirm the changes it will make.
  • Run eM Client and use the automatic setup to set up your accounts with oAuth.

If you'd like to add the needed registry key manually instead of using our provided file:

  • Run Regedit
  • Go to Computer\HKEY_CURRENT_USER\Software\eM Client
  • Add the DWORD item AllowExchangeOnlineOAuth and set its value to 1
  • Then run eM Client and use the automatic setup to set up your accounts with oAuth.

eM Client for MacOS

  • Open the Terminal
  • Execute this command:
  • defaults write com.emclient.mail.client AllowExchangeOnlineOAuth -bool TRUE
  • Run eM Client and use the automatic setup to set up your accounts with oAuth. 


Attachments 
 
 exchange-oauth.zip (0.33 KB)
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