Email submission shows form was submitted by JotForm instead of the person that completed the form

I set up our form so it shows the person that completed the form as the "sender" (i.e. email from) when it shows up in email.  Now, forms are showing up from JotForm instead of the person that filled out the form.  The form has worked for months and now all of a sudden it is now working properly.

Hi,

For email notifications, they should be sent from the default of "noreply@jotform.com".  There has been nothing changed on our end that would have changed this back to the default if you had setup a custom SMTP though.  The sender name for your form is set to the field "Change Order Request Completed By" field.  Is this what is not showing up?  If this is not the case let us know and we will be happy to see if something else may have changed.

Yes, it is the sender name that is now showing up correctly. The sender name is showing up as JotForm. Here is a screen shot of my email box showing the sender name as JotForm:
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Hello,

I sincerely apologize for the inconvenience. We are currently having temporary issues with our default email sender system and had to switch to our backup email sender. The issue is already assigned to our developers for a permanent solution.

Thank you very much for your understanding.

Kind regards"