MC229914 – Final Notice for disabling of TLS1.0 and TLS 1.1 Support for Exchange Online Mail Flow

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check before: 2020-12-21

Product:

Exchange

Scope:

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Platform:

Online, World tenant

Links:

MC218794

Details:

We will no longer support TLS 1.0 and TLS 1.1 from Exchange Online mail flow endpoints beginning January 11th 2021. As those versions of TLS are already retired (most recently communicated in MC218794, July '20), Exchange Online customers and their partners should already be using TLS1.2 to protect SMTP connections between their email servers or devices and Exchange Online.

Change Category:
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Status:

Ring:

Created:
2020-12-15

updated:
2021-03-18

Change type:
Admin impact, Retirement, User impact

task type:
Plan For Change

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