Outlook error

Question

Hi! I received this error today - I have used the repair function in outlook and restarted twice, too - any ideas on how to fix this please?

cId: 41DA9001407C480EB906D6B9FD012585
app: Mail
st: 500
reqid: null
wsver: 15.20.3412.29
efe: MW2PR2101CA0027
ebe: MWHPR0401MB3692
et: ServerError
esrc: StartupData
err: Microsoft.Exchange.Data.Storage.MailboxUnavailableException
estack: Microsoft.Mapi.MapiExceptionUnknownUser
ts: 2020-09-28 23:12:52Z

Answer 1

Hello DarciLee,

Thanks for your post in Microsoft community. Based on error message, seems your mailbox is unavailable, so suggest you to kindly login to Outlook web app and check if you are able to access your account.

A. If any error occurs on OWA (Outlook web app) side, please share screenshot of entire error message, so we can help to check further and follow below suggestion.

• Ask your Micrsoft365 admin to check your account status. Such as subscription is assigned and sign in option is in allow status.
• Also ask admin to help you to check MAPI’s settings for your account.
• To check MAPI status for your account : Login to Microsoft 365 admin portal > Exchange Admin center > Receipts > Users > select your affected account > mailbox features > Search for MAPI and check its set as Enable.

B. If issue persist only with Outlook client app, Use The Microsoft Support and Recovery Assistant tool to check if it helps to identify any issue. It works by running tests to figure out what's wrong and offers the best solution for the identified problem.

Thanks and regards,

Ankita Vaidya

Answer 2

Hello DarciLee,

If you have any update regarding your issue? please feel free to let us know.

Thanks and regards,

Ankita Vaidya