Martyn Houghton Posted February 18, 2021 Share Posted February 18, 2021 Microsoft 365 Mail Connector application authenticates as the account context used to create it, so when you remove permissions from the Office 365 application to use the account, the Test Connection then fail. This is linked to post below where the you have to create the KeySafe using the global admin user to get it to create, but obviously we do not want leave the Office 365 application with rights to use the global admin user account. Cheers Martyn Link to comment Share on other sites More sharing options...
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