Hey Mark, currently both Track-It! 11.4 and Track-It! 2019 require TLS 1.0 and 1.1 to be enabled on the servers for them to work properly. We are working on a fix for 2019 to support TLS 1.2 that will be released this summer.
Hi Mark, I apologize a slight miscommunication here. While it is correct that we are working on this for 2019, I was also just reminded that we recently released a service pack for 11.4 that provides TLS 1.2 support for Exchange connections for email. It does not remove all reliance on TLS 1.0 and 1.1 throughout the 11.4 version but it does fix it for Exchange email connections. Head over to support.trackit.com to find the download or open a support case to get help with obtaining and installing that update.