CustomerGauge uses Amazon Web Services SES for the sending of emails throughout our platform. If you or your customers are having difficulty receiving any such emails, please try whitelisting our dedicated sending IP addresses:
54.240.88.83
54.240.88.84
23.251.253.26
23.251.253.27
69.169.235.38
69.169.235.39
Note: We are currently in the process of transitioning from SendGrid to SES. If you are unsure which one your CustomerGauge platform is using, please open a ticket with our support team, and they can let you know.