Fixed Gravity Forms Notifications

I tried configuring Gravity Forms to send to a new email address I created in G Suite for a domain with an ICANN-era generic top-level domain (.estate). Notifications were not being delivered at all, even to my spam folder. Installing the Postman SMTP Mailer/Email Log plugin allowed me to send all future notifications over SMTP and instantly resolved the problem. Although not used in this instance, I was pleased to see that logging is built into the plugin to assist with troubleshooting.