email - Connect to outlook Office 365 IMAP using OAUTH2

Question

Referred https://msdn.microsoft.com/en-us/office/office365/api/use-outlook-rest-api. Still I couldn't understand the AD, Outlook and windows live.

I got refresh token and access token from https://login.microsoftonline.com/common/oauth2/v2.0/authorize https://login.microsoftonline.com/common/oauth2/v2.0/token

and the scope

openid email profile offline_access https://outlook.office.com/mail.send https://outlook.office.com/mail.readwrite

Still i m getting error while connect imap using the access token.

imap.authenticate('XOAUTH2', 'xxxxxxx', access_token)
Net::IMAP::NoResponseError: AUTHENTICATE failed.

Answer 1

I have finally gotten this to work. Interestingly I had to use the scope https://outlook.office365.com/IMAP.AccessAsUser.All although by now you have to register your app under the Graph API section in the Azure AD and the proposed Scope is https://graph.microsoft.com/IMAP.AccessAsUser.All which did not work for me (Authentication failed). Though I am not sure if that will change in the near future.

I used the properties as stated here: https://javaee.github.io/javamail/OAuth2

props.put("mail.imap.sasl.enable", "true");
props.put("mail.imap.sasl.mechanisms", "XOAUTH2");
props.put("mail.imap.auth.login.disable", "true");
props.put("mail.imap.auth.plain.disable", "true");