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28GREKA's avatar
28GREKA
Copper Contributor
Jan 11, 2023

IMPOSSIBLE TO VERIFY ACCOUNT INFORMATION FROM THE MAIL APP EXCHANGE - IPHONE TRYING TO SIGN IN

 

Hello ๐Ÿ™‚


We have an issue with trying to sign in into the mail app from an Iphone (I phone 12)... We think the problem might be the apple device... we tried a lot of stuff... like updating ios, restart the device, we also verified the account (in web and also in the outlook app there is not problem, so the credentials are ok and there is not a problem with the license...).

 

 

 

IMPOSSIBLE TO VERIFY ACCOUNT INFORMATION*

 

We also tried to sign in the "manual way" but we have the same result... *

 

Our principal theory is that maybe the device ID is blocked by the tenant in a way or directly from apple but we discard the black lists because the phone has access to everything and also the error is different... it's about account or device verification...

 

I don't know if there is another person who has been dealt with this and can help.

 

Thank you! 

 

 

 

  

  • Hello, 28GREKA 

     

    First of all, I'll suggest to check in EXO that the configuration for the user is correct:

     

    Please check also if the device is blocked for the user. You can do it connected to EXO PS running the following cmdlt:

     

    Get-CASMailbox email address removed for privacy reasons | fl activesync*

     

    If the device is ActiveSyncBlocked, copy the device ID and paste it in the following cmdlt.:

     

    Set-CASMailbox -Identity email address removed for privacy reasons -ActiveSyncAllowedDeviceIDs @{add='F2BC03A83CCA6C98'}

     

     

    If all is correct, then probably the issue is device related.

    I'll try to, instead to add the account on the ios mail app, add the O365 account to the device settings-accounts. Then you can select which data you would like to sync and test that. That worked for me in the past.

     

    Hope this helps. Good luck ๐Ÿ˜‰ 

    • 28GREKA's avatar
      28GREKA
      Copper Contributor
      Hi! Thank u very much ๐Ÿ™‚

      unfortunately we did it and didn't work... ๐Ÿ˜ž

      • RGijsbersRademakers's avatar
        RGijsbersRademakers
        Iron Contributor
        Have you checked the AzureAD SignIn logs? There's an AzureAD App registration related to modern authentication for the apple mail app. You probably need to give consent to that app registration and add the user to it to be able to authenticate correctly. In the SignIn logs you should see SignIn failures to that app.

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