Turned-Off Basic Authentication – RPC, MAPI, OAB and EWS (Outlook All Up) – Quixtec

Microsoft 365 Curtain Reveal Tech Bulletin Header

Richard Quatier
March 11, 2022

Exchange Online, Microsoft 365 Suite, Microsoft 365 Experts, SharePoint Development Services

From Microsoft Corporation
Technical Bulletin MC341863 · Published Mar 11, 2022

Message Summary

We are 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. You can always read the latest information about our plans to turn off Basic Authentication here .

Today we turned off Basic Authentication for Outlook in your tenant. Based on our telemetry, no-one is currently using Basic Authentication with Outlook in your tenant and so we expect there to be no impact to you.

We have previously communicated this change via Message Center: MC191153 on 9/20/19, MC204828 on 2/26/20, MC208814 on 4/6/2020 and MC23771 on 2/4/2021, and most recently in the Basic Authentication – Outlook Message Center post sent approximately 30 days ago.

How this will affect your organization:

Users in your tenant will be unable to access their Exchange Online mailbox using Basic Authentication and Outlook.

What you need to do to prepare:

This is for your awareness only. You have the ability to re-enable specific protocols for the time being – read more here .

Additional information

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Richard is an excellent project manager and educator and has been invaluable as we learn to navigate owning and operating our own business. He helped us to build a beautiful, properly functioning website while keeping costs manageable, alerting us to avoidable pitfalls, and keeping us on task to push through the more difficult phases of branding, site speed, SEO, and many other issues we never could have figured out if not for his guidance. Richard is honest, communicative, detail-oriented, and quick to respond to questions and offer suggestions to improve site performance and enhance our messaging. We have recommended him and his company to others and will continue to do so with enthusiasm. He truly wants the best outcome for his clients and puts in the work to make it happen while being mindful of budget and value-add opportunities. We are grateful for his knowledge, his patience, and the team he has put together. There is no-one we would rather have guiding our tech processes!

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When the idea for our business first came about, researching and finding out the many faces of owning and operating a business were a given. The most difficult and terrifying—yes, for me, terrifying, aspect was the one of Technology. Not just Technology, but everyyything that goes with that term! Building a website delayed the dream, because my insecurity about how to even begin, was overwhelming at the time. Many options were available, and we decided on Richard, because of his knowledge in all applications of the technical side, he knew the lingo required and where it needed to be, his connections and background, his patience and common sense. We are, thanks to Richard and his expertise, fully functional and integrated for where we need to be at this point in our business, confidently knowing that the “Technical” side of things show well, provide an easy experience for our customers, and as we grow, Richard is several steps ahead of us on how to apply what’s needed next. Thank you, Richard Quatier, for all you have done for us to take the worry out of this part of running a business!

Lee Grove Co-Owner PTNW

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