How can I change the email address that the recipient sees in the "From" on the email?

I cannot seem to get this changed on three of my forms.  When the recipient get an email it appears that it was sent from siskeypathways@ymcacharlotte.org which is a defunct address now.  I've looked in the Emails section under Advanced and it says the sender email should be noreply@formresponse.com.

Help?  One of the form is listed in the URL section with a snip of what the resulting email looks like in the Screenshot section.

Please reply to heather.vanderiet@ymcacharlotte .org.

Thanks for your help!

Heather Van de Riet