Lazy approval infinite emails

Hello great community people,

Has any of you seen this before?! 

A user had accidentally responded to an email from SharePoint about a specific task. The email didn't include the correct outcome. SharePoint sent back the regular response saying that the response wasn't able to be interpreted. 

The suddenly duplicate emails are being send to the user every 30 seconds with the bold line below.. 

We have terminated the workflow, deleted the item and made sure the list item even is no longer there. We purged the workflow data. Nothing seem to stop those infinite notifications.

First: How can we stop those notifications from being sent to the user?

Second: What could have caused this to happen?

Third: How would we provent this from happening if ever one user accidently responded to an email from SharePoint with an Invalid outcome! 

Using SharePoint 2016 on prem. 


From: SharePoint

Sent: October 3, 2018 3:34 PM

To: test user

Subject: RE: test [#CCCSEUEAE#]


The task is no longer active. Another user may have already completed the task.


Approve and send to editing


-----Original Message-----


Sent: October 3, 2018 2:52 PM

To: test user

Subject: RE: test [#CCCSEUEAE#]


Your response was not able to be interpreted. Please try again with a clear indication of your chosen outcome.


Valid outcomes for this task are:


 - Reject



 - Approve and send to editing

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1 Reply

Re: Lazy approval infinite emails

Just letting you know i had this same incident today

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