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Why are my workflow emails still sending out?
When doing this, it still sent out workflow emails as if it were still a live production site and, since we changed the URLs to point to the new 2010 farm, it appeared to be a valid production email. However, looking through the SMTP headers on the emails themselves told us it was coming from the 2007 farm.
We upgraded a web app from SharePoint 2007 to 2010 but left the SharePoint 2007 copy running in read-only mode for the purposes of comparison. When doing this, it still sent out workflow emails as if it were still a live production site and, since we changed the URLs to point to the new 2010 farm, it appeared to be a valid production email.
How to stop SharePoint sending task overdue emails?
The old workflows will have No New Instances selected but may still be allowing old ones that were deleted to be running. If you remove all of the old versions, you should stop getting these emails sent out. https://sharepoint.stackexchange.com/questions/64436/deleted-workflows-still-sending-emails
How can I see if a workflow has been removed?
You’ll be able to see if this is happening easily enough by seeing a timestamp after the name of the workflow. If you click on Remove, block, or restore a workflow at the bottom, you can see how many instances are currently running, even if they aren’t active workflows anymore. This is where my emails were coming from.
What happens when I change the name of a workflow?
Now with 2010 workflows, if you make a change and save it, it creates a new version but keeps the old version in this list. You’ll be able to see if this is happening easily enough by seeing a timestamp after the name of the workflow.
The old workflows will have No New Instances selected but may still be allowing old ones that were deleted to be running. If you remove all of the old versions, you should stop getting these emails sent out.