POP3 Server Connection Test Fails

[GeoViz]

I am trying to setup the email connector - Incoming Email Settings and getting this error "Failed to Generate App Token" after entering my Office 365 credentials into the web browser.

Status Failed: > Connecting to Pop3 server...
Failed to get OAuth2 Bearer Token
> Connect-Error...Pop3Exception POP3 needs OAuth2 authentication token
RqType = 0 POP3 error 9999

[Support Team]

Thank you for posting and asking.

From the details you provided it seems that there was a mismatch between the public email address assigned to the Email Connector, and the 365 user used to sign in to authorize the integration.

You may first (if available) use the Reset option under the Actions menu - this should reathorize the Email Connector in 365.

Note: A browser window where you will be prompted to login with the same 365 account that is configured for Email Connector.

IMPORTANT: FIRST, please make sure your browser is signed OUT from 365 BEFORE starting this process - and - when prompted to sign in - do it with the 365 account you use for the Public Email Address, e.g., support@YourCompany.com (so unlike using your own address at 365 as this will conflict).

Once the connection is established successfully, you can surely sign out (in the Browser) from this "support@" 365 account and sign in back with your own 365 account.

In short, the key is to 365-approve the email address you specified for the Email Connector (public email address) by logging into 365 using that email address during the configuration and authorization process.

Hope this helps!