Send form submissions to custom domain mail not working

Hey there, I set up my Send form submissions to custom domain which is my webflow site’s published domain. When I fill a new form it’s not sending the submission. I tried it to change to my own gmail and icloud mail and it worked. But when I use my G Suite mail, I can’t receive the mail.

G suite mail is working, I can receive and send mails to that mail but Webflow forms doesn’t received.

What can I do?