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Dynamics 365 Community / Forums / Customer experience | Sales, Customer Insights,... / Email Router Configura...
Customer experience | Sales, Customer Insights,...
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Email Router Configuration Manager

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Posted on by thekudo 12

Hi All

Any help would be appreciated. A DEV has come to test their Email Router Configuration Manager on a DEV machine. 

However when testing it comes up with the below error. 

I have a feeling it's because the application uses TLS 1.2 and the connection goes through TLS 1.1 that's my guess. 

Would any one PLEASE have any suggestions to get round this as it's driving me crazy! Is it possible to specify a proxy for the email router?

Many thanks in advance

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  • thekudo Profile Picture
    thekudo 12 on at
    RE: Email Router Configuration Manager

    Amazing this really did work! Thank you so much! Eternally grateful!

    pastedimage1651048836648v2.png

  • Verified answer
    Venkatesh Nadar Profile Picture
    Venkatesh Nadar on at
    RE: Email Router Configuration Manager

    Hi,

    Essentially, Dynamics 365 has full compatibility with TLS 1.2 only 8.2.2.1663 or v9.

    https://www.microsoft.com/en-us/download/details.aspx?id=57079

    https://cloudblogs.microsoft.com/dynamics365/bdm/2017/09/28/updates-coming-to-dynamics-365-customer-engagement-connection-security/?source=crm

    TLS is not controlled by the E-mail router but of the security settings on the machine through the registry entries that would be used similar to a server that .Net would leverage.

    If you have TLS 1.2 enabled, TLS 1.1 and TLS 1.0 disabled for client on the server, and the SystemDefaultTLS registry keys configured – then the outgoing communication for .Net will be TLS 1.2.

    You can use the following registry key to enforce the TLS 1.2 rather than other versions.

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727]
    "SchUseStrongCrypto"=dword:00000001

    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v2.0.50727]
    "SchUseStrongCrypto"=dword:00000001

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
    "SchUseStrongCrypto"=dword:00000001

    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319]
    "SchUseStrongCrypto"=dword:00000001

    Supporting link -(+) CRM 2013 emails not being generated with TLS 1.2 protocol - Microsoft Dynamics CRM Forum Community Forum

    Hope this Helps!

    Regards,

    Venkatesh N

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