Where we have blog posts hosted elsewhere we currently add an entry on wildfly.org that shows up in the news section but then the link posts back to the original site.
I have been using Feedly for a while to read the contents from feeds, other tools may also have a similar issue but I have noticed our posts which redirect show up as "[no content]" in the feed viewer.
For my recent blog post I tried copying in a couple of sentences and this now shows up in the feed instead of "no content"