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

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check before: 2020-12-21

Product:

Exchange, Microsoft 365 admin center, Office 365 general, Power Automate

Platform:

Online, US Instances, Web, World tenant

Status:

Change type:

Admin impact, Retirement, User impact

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.
[Key Points:]
Major: Retirement
Timing: January 11th, 2021
Action: Review and assess impact for your organization

Change Category:
XXXXXXX ...

Scope:
XXXXXXX ...

Release Phase:

Created:
2020-12-15

updated:
2021-07-08

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Last updated 12 months ago

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