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Mapi was unable to load the information service EMSMDB.DLL

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Hi,


I'm migrating POP users to Exchange Online. They are using Windows 7 & Outlook 2010. One users Exchange account is failing to add to his Outlook profile properly. His data file shows as being a private folder instead of an OST. Outlook fails to start with the following error:

Cannot open your default e-mail folders. An unexpected error has occurred.
Mapi was unable to load the information service EMSMdB.DLL
Be sure the service is correctly installed and configured

 

Suggestions would be most welcome.


Thanks,

Mark..


All Replies
  • Hi Mark,

    From the error message, it seems that your Outlook crashed.

    To solve this issue, please try to follow steps below:
    1.Reinstall Office 2010 to fix Outlook.
    2.Run Desktop setup to automatically configure your Office desktop apps to work with Microsoft Office 365.
    3.Create a new profile to configure your Office365 account.

    Thanks,
    Jacky Ding

    0 out of 1 people found this post helpful.

  • Hi Mark,

    How is everything going? Do you have any updates about the status of the issue?

    Thanks,
    Jacky Ding

    0 out of 1 people found this post helpful.

  • Hi,

    I encountered the same problem with Outlook 2013 after a windows update.

    No need to repair or reinstall office / outlook.  I tried that and it didn't work.  I also did not create a new outlook profile.

    The emsmdb32.dll can be found here.  C:\Program Files (x86)\Microsoft Office\Office15\emsmdb32.dll

    Rename file to emsmdb32.dll.old

    Start Outlook and Outlook setup will recreate this dll

    This will resolve the problem.

    Regards,

    Tim

  • try this as well

    support.microsoft.com/.../2772566