Time Running Out for Exchange Online Basic Authentication

Microsoft plans to disable basic authentication for five Exchange Online connection protocols on October 13, 2020. They’ve been clear on this point for several months and are now moving to deliver tools and provide guidance about what people should do about clients that use basic auth connections with Exchange Web Services, Exchange ActiveSync, IMAP4, POP3, and Remote PowerShell. Work is needed to make sure that clients are prepared for the switchover to modern authentication.

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