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I am trying to configure Adaxes to talk to my O365 Tenant. Following the guide here - https://www.adaxes.com/tutorials_Active ... ice365.htm - I am getting stuck on the registration stage.

I am required to enter an account that has admin privileges in O365. I have created a service account that has Exchange Admin and User Admin within 365. The account does not have MFA enabled.

I get the following error:

Invalid Credentials.
An error occurred sending the request.

I know the credentials are correct because I can authenticate to Azure using this account.
I have also ensured that MFA is not enabled (I got a different error initially when it was enabled)
Mail-enabling the service account didn't make a difference
I get the same error with my own account (which has the same rights that I have set on the service account)

Is anybody able to help?

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To connect to Office 365, Adaxes sends HTTP requests to the following URLs:


Please, make sure that neither of them is blocked by your firewall.

If that does not solve the issue, enable tracing of requests sent to Office 365, reproduce the issue and send us (support[at]adaxes.com) the log file. For information on how to enable the tracing, have a look at the following help article: https://www.adaxes.com/help/?HowDoI.Per ... uests.html.

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