HomeWinBuzzer NewsMicrosoft Disabling Basic Auth in Exchange Online in October

Microsoft Disabling Basic Auth in Exchange Online in October

Microsoft says Basic Auth on Exchange Online will be removed from October 1, 2022, replaced by Modern Authentication.


As previously promised, is depreciating Basic Auth in and has now put a final date on the finalization of the feature. Microsoft has been saying for years that Basic Auth would be removed, causing plenty of controversy amongst Exchange Online customers. The company now says the feature will be removed in October 2022.

More specifically, that is when the company will begin depreciating the service and support will be phased out gradually from there.

The removal of Basic Auth on the Exchange Online multi-tenant will happen worldwide from October 1. Microsoft is taking a unique approach by contacting tenants directly to tell them when the removal date will happen for them.

Once Microsoft reaches out, the tenant will have seven more days until Basic Auth is disabled completely. The company points out that no organization will be able to negotiate an extension of the cut-off period.


While the process is gradual and will stretch into 2023, all Exchange Online customers must be ready on October 1. That's because Microsoft has no public plan for how it will deprecate the service. At least on the outside, the calls from the company will be random and could happen at any time after that date.

Basic Auth (Basic Authentication) works by a website visitor being asked for a username and password. Microsoft is replacing the system for Exchange Online with the new Modern Authentication, which combines various authentication practices.

Microsoft is disabling Basic Auth across various protocols: Exchange Web Services (EWS), Offline Address Book (OAB), Remote PowerShell, RPC, MAPI, POP, and IMAP. Microsoft says customers should migrate to Modern Authentication now to avoid being caught by surprise when Basic Auth is disabled.

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Luke Jones
Luke Jones
Luke has been writing about all things tech for more than five years. He is following Microsoft closely to bring you the latest news about Windows, Office, Azure, Skype, HoloLens and all the rest of their products.

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