We are using Contact form 7, and G Suite for emails. Google was able to help with one of the websites by changing the receiving email from info @ domain.com.au to
info @ domain.com.au.test-google-a.com and the forms on this website started working.
However this solution didn’t work on the second website.
@stuartb3502 how do I check the email path ?
@nx4u OK I can look into the MX records if they need any updating but with G suite they are all standard.
In the meantime, this has been resolved on one website by calling Google support.
The second website is still having issues.