Forum Discussion

Matt Beaman's avatar
Matt Beaman
Copper Contributor
May 30, 2017

Outlook - Operation Failed

I've an issue with what appears to be one specific user account, after joining a machine to AAD, the user cannot open outlook, receiving the 'operation failed' message. I've tried other user account...
Azure Active Directory (AAD)
microsoft 365
VasilMichev's avatar
VasilMichev
MVP
May 31, 2017

Does OWA work? Try creating new Outlook profile, it might help pinpoint the issue. Running Outlook in safe mode can help exclude issues with add-ins, so try it too.

 

Also, which user profile are you using, the default one on the machine or the Azure AD one?

Matt Beaman's avatar
Matt Beaman
Copper Contributor
May 31, 2017

Hi there,

 

Yes, done all that and completely rebuilt machines, still no joy. AAD profile doesnt work / causes error.

 

If logging on as a local user their Outlook works perfectly.

 

Thanks,

 

Matt

  • VasilMichev's avatar
    VasilMichev
    MVP
    Jun 01, 2017

    OK, let's start with the basics. Are you enforcing MFA? Do you see a "regular" credentials prompt or the ADAL one (browser control)? Run the Autodiscover test from ExRCA (http://aka.ms/rca) and also locally on the machine (hold ctrl, right-click Outlook's icon in the tray, Test E-Mail Autoconfiguration, enter username, clear the two Guessmart checkboxes and run the test). Can you access other O365/Azure AD applications with the same account?

     

    Also run "dsregcmd.exe /status" to cover potential issues with the PRT.

Resources