I've registered my app on Azure and have enabled API Application Permissions for MS Graph(IMAP.AccessAsUser.All, POP.AccessAsUser.All, User.ReadBasic.All, User.Read.Write).
I'm able to request a valid OAuth token from Graph endpoints. However, when I use the token and try to log into the POP server, I get the following error:
-ERR Authentication failure: unknown user name or bad password.
I am able to log in to IMAP with the same access token. So, the issue should not be with the validity of the Access token provided. Anyone else facing/faced this issue previously and if found the fix, please let me know. I would be thankful. Anand_Vashishtha Can you check and confirm if it is working now or any issues with Outlook POP OAUTH 2.0.
Please help with this The_Exchange_Team