OWA gives 500 internal server error

Every now and again I come across the 500 Internal Server Error when logging into OWA.

The majority of the time you will just need to start the Microsoft Forms Based Authentication service. If you have more one Exchange server in your enviroment, the service needs to be started on them all.

If that doesn’t work, resetting the virtual directory for OWA should sort it – The examples on the following TechNet articles should get things going:

 

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