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Basic Authentication Deprecation in Exchange Online – September 2022 Update

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The_Exchange_Team
Platinum Contributor
Sep 01, 2022
One month from today, we’re going to start to turn off basic auth for specific protocols in Exchange Online for customers who use them. Since our first announcement nearly three years ago, we’ve se...
Updated Jan 01, 2023
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cnvedb's avatar
cnvedb
Copper Contributor
Nov 25, 2022

When looking at Microsoft documentation and Exchange blog posts I am still confused on what will happen with SMTP AUTH as from 1/1/2023.
I raised tickets with Microsoft Support and was in contact through the partner channel and the answers I was provided with were not clear at all.

 

The_Exchange_Team can you please provide me a clear answer on the following questions:

  • Will SMTP AUTH still be supported after 1/1/2023 for those O365 tenants that are already actively using it and don’t have it disabled right now?

  • Will SMTP AUTH still be supported for existing O365 tenants which currently have SMTP AUTH disabled (as not yet in use) but want to enable it after 1/1/2023?

  • Will SMTP AUTH still be supported for new O365 tenants?