# [2022-03-11] Microsoft Exchange Online and Basic Auth Changes

Source: https://developer.nylas.com/docs/new/v2-release-notes/2022-03-11-deprecating-microsoft-exchange-online-basic-auth/

Microsoft will be [deprecating Basic Authentication support](https://techcommunity.microsoft.com/t5/exchange-team-blog/basic-authentication-deprecation-in-exchange-online-september/ba-p/3609437) for all Exchange Online accounts as of October 1, 2022.

This affects:

- Exchange Online Accounts (Microsoft 365/Office 365)- Exchange Server Accounts in a [Hybrid Deployment](https://learn.microsoft.com/en-us/exchange/exchange-hybrid).

This will not affect:

- Personal Accounts such as Outlook, Hotmail, live.com and MSN.