How to make link in alert message show hostname instead of "localhost"?

list Jeff Gilmore
Sun, 2 Feb 2020 12:02:59 -0500
Message-Id: <user-a193c271cd99@xymon.invalid>

When my Xymon instance generated alert emails, the link at the bottom links like this:

"See http://localhost/xymon-cgi/svcstatus.sh?HOST=choicevoip&SERVICE=conn <http://localhost/xymon-cgi/svcstatus.sh?HOST=choicevoip&SERVICE=conn>?

Can anyone tell me how to have these links get generated to use the actual hostname instead of localhost?

Thanks!

Jeff