The issue has been resolved! Turns out the google group we were using was restricted to receive emails/conversations within the organization only. We changed the settings are able to receive incoming survey responses.
thank you for response! I am using a single email address, that is a Google group with multiple members (https://support.google.com/groups/answer/2464926?hl=en). I hope that clarifies the issue a bit because I am aware that enter multiple email addresses that are separated by a comma and space.
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