Cannot send emails without local host SSL certificate

[RelativeForce]

Background
On @JordyBoy185's computer, we could not send emails and would get the following exception

System.Net.Mail.SmtpException: Server does not support secure connections.

Investigation
Having the ASP.Net Core 3.1 Hosting bundle link installed allows the emails to be sent as expected. This implies that the hosting bundle sets up the PC environment with features that allow SSL connections from the .Net Core web app

Task
Find a robust solution that allows the user to send emails.