Ok, I think both the RSS feed and the email were using a setting in our Discourse config files that was incorrectly pointing to "topazlabs.com", instead of "discuss.topazlabs.com". In the frenzy to get things working, we overlooked that piece.
Refresh the latest.rss page, and the links should now be correctly listed. I just checked it and it is now correct for me:
This should fix your links in your RSS reader