Update (April 2023): For Microsoft 365 operated by 21Vianet, TLS1.0 and TLS1.1 for SMTP AUTH will no longer be supported after June 30, 2023. We will be disabling TLS 1.0 and TLS 1.1 usage with SMTP,...
Updated Apr 13, 2023
Version 5.0
Blog Post
3 MIN READ
New opt-in endpoint available for SMTP AUTH clients still needing legacy TLS
davies217Sounds like you don't have much choice but to install the Service Pack 4 then as recommended. Out the box, SQL Server 2012 R2 does not support TLS 1.2. SP4 enables support for it. Use this for reference:
https://support.microsoft.com/en-us/topic/kb3135244-tls-1-2-support-for-microsoft-sql-server-e4472ef8-90a9-13c1-e4d8-44aad198cdbe
DNewb860 SQL Server 2014 SP3 should already have TLS 1.2 capabilities, something else must be broken. If all else fails, then an upgrade to SQL Server 2016 will have TLS 1.2 built in support. My only question would to what you actually done to the registry. Compare what you did to this guide as the Microsoft guides are lacking: https://www.itnota.com/enabling-tls-1-2-default-security-protocol-windows-servers/