Sorry, we followed this procedure : https://help.sagecrm.com/on_premise/en/2021R1/Administration/Content/Administrator/EM_ConfigureOAuth2.0.htm

there could be something missing... There are no reported bugs for this version's Email Manager. Did you try reaching out to the Sage Partner or the local Sage Support? Which region is this?

Hello Mathew,

French HotLine cannot manage to help me on this problem.

My client is stuck as Microsoft disabled basic authentification last friday.

Thank you.

Is the customer based in France?

Yes

I have info only on North America support.. did you try re-entering the CRM Admin  Password in the Administration → E-mail and Documents → Advanced Email Management Server Options

Mathew,

I tried this with the client but the error is still here and the same :

2023-01-30 17:27:36.640> Exception connecting to Mail Server: Authentication failure: unknown user name or bad password.

Also I hope you are using the Value in the Certificates and Secrets and not the Secret ID..the documentation is a bit confusing here.

I had a similar issue with an upgraded CRM.
I noticed in the database that the EmSe_AuthAccessToken was not being filled in after the OAUTH callback was made. I deleted and recreated the same Email Management options within CRM. After that a token was stored in the CRM database and everything started working.

Serge,

Thank you very much !

It was exactly this problem, EmSe_AuthAccessToken and EmSe_AuthRefreshToken were blank.

From an upgraded CRM.

I deleted and recreated the mail management and everything is working now.