I have not made any changes to my workflows in months; however, now any time a workflow generates an email notification, 17 emails are being sent. This behavior began on 3/27. I have several sites and this behavior is occurring on each site. I have reviewed the SharePoint/Nintex settings under Central Administration and nothing appears out of the ordinary. However, temper that statement with the fact that I am not a very experienced SharePoint Administrator.
What could possibly be happening? Any guidance and assistance would be greatly appreciated.