Fedora folks would love to be able to add fedmsg support to bugzilla.redhat.com for Fedora and Fedora EPEL bugs only. 

fedmsg is our 0mq message bus. Most of our applications are enabled on it to emit messages when changes or events occur. We can then see what all is happening in our infrastructure as well as acting on messages as they happen. For example, awarding badges for users doing things, or starting syncs when jobs are done, etc. 

http://fedmsg.readthedocs.org/en/latest/overview/ has some more overview of fedmsg. 
You can also see it real time in #fedora-fedmsg on irc.freenode.net, with fedmsg-notify package on your desktop, or via https://apps.fedoraproject.org/busmon/ (websocket). 

We would like to add a bugzilla plugin that emits messages for Fedora and Fedora EPEL component bugs when some actions happen on any of them. Likely this would be the same set of things that generate emails currently. (new bug opened, state change, comment, etc). The plugin should just simply be a noop in the case of non Fedora bugs, and also should be a no-op if it is unable to send, etc. 

This plugin doesn't currently exist, but we should be able to write it and help maintain it. This bug is first to explore the idea and see if you are open to running such a plugin at all before any implementation is done and what requirements you might have for such a plugin. 

An alternate way we thought of to do this would be to add a account to CC on all Fedora bugs and scrape emails, but this would generate a bunch more load for you and would be prone to error dealing with the emails, so a fedmsg plugin seems like it would be a LOT more 'clean'. 

Happy to provide more information or details or use cases, etc. 

Thanks for your consideration.