Email OAuth profiles and Microsoft 365 client credentials

Email OAuth profiles and Microsoft 365 client credentials

You can now create email OAuth profiles for Microsoft 365 using the client credentials grant type. This lets shared mailboxes authenticate through an app registration instead of relying on an individual user sign-in. OAuth IMAP setup is more resilient for support inboxes and other application-managed mailboxes.

For more information, see Email OAuth profiles and Microsoft 365 client credentials.