if the domain is still with godaddy, login to godaddy and update the mx records in the dns settings. once you do that, check that they are updated to the wordpress mx settings by going here and putting in your site name: https://www.unlocktheinbox.com/dnslookup/mx
if they don’t show up at first, give it 24 – 48 hours to be propagated (dns ttl settings may cause the delay).
once they settings are updated in dns, send another email and see if it arrives.