Disable TLS

Roger Roger 4,956 Reputation points
2021-10-14T20:07:42.333+00:00

Hi All

I am using exchange 2016 hybrid environment. Is it safe to disable below protocols and ciphers on the exchange servers. will there be any impact.

Server Protocols-->TLS 1.0 & TLS 1.1
Cipher-->Triple DES 168

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,369 questions
Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
1,901 questions
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  1. KyleXu-MSFT 26,211 Reputation points
    2021-10-15T02:44:00.123+00:00

    @Roger Roger

    Exchange on-premises and Exchange online is supported TLS 1.2, and suggested to disable TLS 1.0 and TLS 1.1. For more detailed information, you could have a look about those article below.

    About 3DES, it is suggested disable RC4 to use 3DES.
    140719-qa-kyle-10-43-11.png

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