Search Console Starts to Send Warning Emails for TLS1.0/1.1 SSL Certificates
https://twitter.comStarting January 13, 2020, for Chrome 79 and higher, Chrome will show a Not Secure indicator for sites using TLS 1.0 or 1.1 to alert users to the outdated configuration and to help webmasters Search Console has been sending out warning emails for sites that still have them. In March 2020 with Chrome 81, they will begin blocking connections to sites using TLS 1.0 or 1.1, showing a full-page interstitial warning. More Info.
You can check if your site is impacted by using Chrome’s dev tools. Right Click >> Inspect >> Security Tab. OR you can use something like this.