Non-OAUTH2 email clients are blocked from accessing outlook.com (and hotmail.com) servers in September 2024

 It is official now: non-OAUTH2 email clients are blocked from accessing outlook.com (and hotmail.com) servers. 

https://techcommunity.microsoft.com/t5/outlook-blog/keeping-our-outlook-personal-email-users-safe-reinforcing-our/ba-p/4164184

https://support.microsoft.com/en-us/office/modern-authentication-methods-now-needed-to-continue-syncing-outlook-email-in-non-microsoft-email-apps-c5d65390-9676-4763-b41f-d7986499a90d

In theory the change will be applied in Sept 2024, but we know that Microsoft implemented it already.

Application Passwords will not be supported too after Sept 16 2024 

 As of June 11 2024 old email clients still can access outlook and hotmail servers (IMAP and SMTP) using application passwords but they will stop working in September 2024.

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