I have a very basic workflow that I added to a list. Basically, I just want to send an email to myself. I created the workflow to send an email and then end the workflow. When I add an item to the list, I can check the workflow and see that it is running. Eventually, it moves itself to the completed stage. I see the workflow services are running appropriately on the workflow server, but no email ever comes. Sharepoint can send emails, so I'm a bit perplexed as to why I'm not getting emails from the workflow. I don't have any error messages in the event viewer. How else can I debug this problem?
I found a Claims Authentication error on the web front end server that detailed Illegal operation attempted on a registry key that has been marked for deletion . I reset the IIS on the web front end and it appeared to kick everything through.