Forum Discussion
OAuth + IMAP on Outlook stopped working
On 9/24/21, my outlook.com email address stopped working with OAuth over IMAP. Nothing changed on my end. It works with normal authentication. It had been working fine with OAuth for months prior to this. Another user has reported the same issue in another forum.
Oddly, the Access Token is being received just fine. But when the IMAP AUTHENTICATE command is sent, the Access Token is rejected with the useless "AUTHENTICATION failed" error message.
I have contacted the outlook.com team, and they told me they can only provide support for the website, which is ridiculous, and they told me to post in this forum. I contacted the Office 365 team and they told me to contact the outlook.com team. So I'm getting the run around.
4 Replies
- This morning I discovered that it is now working again. Whatever the problem, Microsoft seems to have fixed it.
- Just a wild guess, but often the oauth secrets have limited lifetime by default. Could it be possible the secret expired?
- This problem affects 3 of our apps. All of them were registered before secrets started getting an expiration date.
- Would it be possible to create a new secret d as I’d check if it works again? Just to rule out any other service changes causing this.
