OAuth support for smtp authentication

Q1. End of support of smtp basic auth for Exchange Online
In the second half of 2025, Exchange Online will no longer support basic smtp authentication for sending emails.

Q2 - Who is impacted?
Every users of Exchange Online to send emails notifications.

Q3 - Why is it important and/or urgent?
End of support in the second half of 2025.

Solution
It will be necessary to use another protocol like OAuth to authenticate to Exchange Online.

Hello @hansolo57,
Thanks for bringing this to our attention!

We created an internal ticket for the development team (ref. PB-37583) for this request.

Best regards

Here is the official announcement to that effect:

Exchange Online to retire Basic auth for Client Submission (SMTP AUTH) | Microsoft Community Hub

Hello @antony,

I just wanted to ask how far you are with that issue. Microsoft changed the timeline, but starting on 1st of March they will discontinue SMTP Basic Auth.

Thanks a lot!

Thanks for the heads up @Astriel07. Currently there was no movement on PB-37583, now that there is a deadline, we’ll have to move :slight_smile: .

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