This was spurred when I found that adding a feed from our sitefinity site's blog resulted in the feed "titles" to not link back to the original article. It either just refreshes back to the same page, or, clicking doesnt work. I tried this in multiple different readers.
I ran a feed validator:
We are running version 4.2 of Sitefinity, and I can try to provide any other information needed.
Where should I start with trying to fix this? Of course my inclination is to "update to version XX" but that is not in my hands to make that decision, so, recommendations for that, while agreed with, will not be helpful at the moment.