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Categories: Exchange Online

March 15, 2022

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Basic Authentication – Exchange ActiveSync

Exchange Online, SharePoint Development Services, Custom Software Development

From Microsoft Corporation
Technical Bulletin MC343024 · Published Mar 14, 2022

YOU MAY HAVE RECEIVED THIS NOTICE

Message Summary

We’re making some changes to improve the security of your tenant. We announced in 2019 we would be retiring Basic Authentication for legacy protocols and in early 2021 we announced we would begin to retire Basic Authentication for protocols not being used in tenants. 

7 days from today we’re going to turn off Basic Authentication for Exchange ActiveSync protocol in your tenant. Based on our telemetry, no-one is currently using Basic Authentication with that protocol in your tenant and so we expect there to be no impact to you. 

We previously communicated this change via Message Center: MC191153 (Sept. ‘19), MC204828 (Feb. ‘20), MC208814 (April ‘20) and MC237741 (Feb. ‘21) and you can always read the latest information about our plans to turn off Basic Authentication here.

We will send another Message Center post when we make the change. You may receive additional notifications if any other protocols could be affected.

How this will affect your organization:

Once this change is made, users in your tenant will be unable to access their Exchange Online mailbox using Basic Authentication and this specific protocol.

What you need to do to prepare:

This is for your awareness only. If you experience any issues, please follow your standard support processes.

TECHNICAL BULLETIN END

QuixTec provides this and other technical bulletins unaltered from Microsoft. As an authorized Microsoft Partner, we ensure that all our solutions we deliver to you include the latest Microsoft updates.

ABOUT US: QuixTec, LLC is a U.S. certified Veteran Owned, modern DevOps organization and Microsoft Partner that specializes in Microsoft SharePoint, Microsoft365 expertise & HTML5 technologies for small to enterprise-sized organizations. The founder, Richard, has 30 years of experience working with several notable companies that include World Vision, Expedia, Microsoft, Levi Strauss, NASA, Boeing Aerospace, Los Alamos National Laboratory, and the U.S. Air Force, to name a few.  QuixTec is in the Seattle area. Phone today for a free consultation and project estimate:

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