I. Intro
Microsoft has announced that it is disabling Basic Authentication for random tenants from October 1, 2022. Once disabled, you will not be able to use your account password to access your Microsoft 365 email account on third-party platforms. In order to complete the verification process when migrating emails, you will need to ask an administrator to enable Basic Authentication in the Microsoft 365 admin center.
II. Steps
- Go to the Microsoft 365 admin center and select Help & support in the lower-right corner.
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- Enter Diag: Enable Basic Auth in EXCHANGE, and then click Run test.
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- Select the corresponding protocol (IMAP/SMTP/EWS), and then click Update.
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- The following message will be displayed to confirm that you have opted out from disabling Basic Authentication.
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