Update: The full timeline for retirement of Basic Authentication in Exchange Online is now published in Basic Authentication Deprecation in Exchange Online – September 2022 Update.
For many years, ...
Updated Jul 09, 2024
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Can you clarify, for those of us with SMTP/IMAP apps today, what can we do right now to begin to test a new configuration and talk to app developers??
From what I've seen apps already support OAUTH flows for SMTP/IMAP to support gmail, but no support for O365 is present because MS hasn't enabled any protocols server side.
.. and splitting the delivery date of IMAP and SMTP enablement is going to be horrible. I think in practice app makers will wait until MS enables OAUTH on both before doing anything. A split configuration is just an awful user experience. Meaning we will probably only have a few months before the deadline when completed, released, software is available to migrate!! I hope MS can now seriously expedite delivering OAUTH on both protocols.