[Oauth 2.0] imap Office 365

Hi, I'm trying to authenticate on microsoft office 365 using Oauth 2.0. I always have the following error with the dll : "AUTHENTICATE failed (NO)." My Azure App, and my token are OK, i can authenticate using another librairy. Could you help me ? My code : using (Imap _imap = new Imap()) { _imap.Connect("outlook.office365.com", 993, ComponentPro.Net.SslSecurityMode.Implicit); _imap.Authenticate(_return.access_token.Value, ImapAuthenticationMethod.OAuth20); _imap.Disconnect(); }

Hi Martin, thanks for your message, the ressources are : ![enter image description here][1] And the token is : ![enter image description here][2] the scope seems to be OK, and I use directly the acces_token to authenticate, but unsuccessfull [1]: https://download.isi-com.com/tmp/api.png [2]: https://download.isi-com.com/tmp/token.png

Hi Sebastien, You need to check the resource for which the token is generated. IMAP and SMTP scopes are targeted for Exchange resources. You should generate a token by calling to /token. With the IMAP, SMTP scopes are generated for the Exchange resource. Protocol Permission scope string 1. IMAP https://outlook.office.com/IMAP.AccessAsUser.All 2. POP https://outlook.office.com/POP.AccessAsUser.All 3. SMTP https://outlook.office.com/SMTP.Send Hope this answers your question Thanks for contacting us.