There are two ways to do this. First, in Settings>Management Interface you'll find a SmarterTrack Base URL field which is how we build out those links (when not being built dynamically via host headers on the brand.) Alternatively, in Settings>Security you'll also find an option to force all traffic over HTTPS. I hope that helps!
Kyle Kerst
IT Coordinator
SmarterTools Inc.
www.smartertools.com