Microsoft Exchange Online
A Microsoft email and calendaring hosted service.
1,574 questions
POP3 with OAuth
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Microsoft Q & A
381
Reputation points
Getting below error with IMAP Oauth while Authentication.
Caused by: javax.mail.AuthenticationFailedException: Authentication failure: unknown user name or bad password.
DEBUG POP3: connecting to host "outlook.office365.com", port 995, isSSL true +OK The Microsoft Exchange POP3 service is ready. [QWERRTYUHNJKIOLLUUUUUUtttttttAEYAUgBBAFAAMgA2ADQALgBQAFIATwBEAC4ATwBVAFQATABPAE8ASwASDFRujuuuu==]
DEBUG POP3: mail.pop3.auth.xoauth2.two.line.authentication.format: true DEBUG POP3: AUTH XOAUTH2 using two line authentication format DEBUG POP3: AUTH XOAUTH2 failed
{count} votes
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Miguel Gonçalves | AVANADE 886 Reputation points2024-06-12T15:02:17.7133333+00:00 Hi,
Please confirm if you already register your app in entra, get access token, and are using SASL XOAUTH2 format to encode and transmit the access token.
Basic authentication for POP/IMAP and SMTP will be deprecated in the future, so ensure you’re using OAuth for secure connections
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