G Suite Toolbox
Domain name

error carbonlighthouse.com

There were some critical problems detected with this domain. Mail-flow is probably affected. Please refer to the corresponding help articles to fix these.
error
There must be no more than one SPF record.
Multiple SPF records may cause delivery and spam classification issues.
v=spf1 include:_spf.google.com ~all
v=spf1 mx include:mktomail.com ~all
done
Domain should have at least 2 NS servers.
done
Naked domain must be an A record (not CNAME).
done
Every name server must reply with exactly the same TXT DKIM records.
done
Every name server must reply with exactly the same TXT DMARC records.
done
Every name server must reply with exactly the same CNAME records.
done
Every name server must reply with exactly the same NS records.
done
Every name server must reply with exactly the same MX records.
done
Every name server must reply with exactly the same TXT records.
done
DKIM authentication DNS setup.
done
Formatting of DMARC policies.
done
MX lookup must fit in one UDP response packet.

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