Essentials Server “The domain name was not setup for your server” when renewing SSL
Caused by TLS version issues, use both files below and reboot server, then Repair and configure as normal
Rename files accordingly – .ps1 for Powershell file and .reg for Reg file
From here: https://blogs.msmvps.com/bradley/2021/04/01/essentials-servers-fix-up-to-get-remotewebaccess-renewed/
Site appears to be down now