I am trying to configure Remote Utilities - Host (Agent v 188.8.131.52) with Viewer (same vrsion number) on a Windows 10 1909 OS. When I test the SMTP connection I get an erroe message shown in the picture. Other applications (such as Outlook of Thunderbird) do connect to my SMTP server with the same settings without a problem. Without encryption the Agent connects to the mail server perfectly. I contacted my web hosting provider with the issue and they told me the software probably uses an older TLS version protocol. I found info on TLS version used by the Viewer and Host when they connect to each other, but I did not find anything on SMTP. Hence I am here trying to find out what version of TLS is used when the Host connects to a mail server. I would appriciate any help.