Gravity Forms SendGrid allow you to easily send all of your form notifications directly to the SendGrid API.
Send Form Notifications Using SendGrid
Having trouble with form notification emails sending from your web server? Send them with the SendGrid email service instead!
Reliable Email Delivery
By using a dedicated email service like SendGrid to send your form notification emails rather than from within your WordPress web server, notifications are much more reliable to ensure you don’t miss a single event!