Can't set up SendGrid with Google domain because of underscore in CNAME

Question

I am able to add the first CNAME without the underscore but when i try adding s1._subdomain, the underscore won't allow google domains to add it. It gives me an error saying the name is invalid. Any tips?

Should I change the domain provider or give up on SendGrid?

Answer 1

s1._domainkey should be the name (and not the value) of your CNAME without the last part of your own domain. For example, s1._domainkey.yourdomain.com should just be s1._domainkey.

Answer 2

Ran into this nearly 2 years later + posting back incase anyone else finds this - with Cloud DNS, you have to be really careful to add the . at the end. e.g. in sendgrid, it lists: u28693559.wl060.sendgrid.net, which CloudDNS throws a wobbler at. However, if you add the . at the end it works.

See: https://cloud.google.com/dns/docs/dns-overview#public_zone