error simplest-thing.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
If your domain wants to use MTA-STS (optional), the MTA-STS TXT record must comply with RFC8461.
MTA STS is malformed.
info_outline
The following IP addresses are taken from the includes and IP4/IP6 directives within this domains SPF record.simplest-thing.com. _spf.google.com _netblocks.google.com 35.190.247.0/24 64.233.160.0/19 66.102.0.0/20 66.249.80.0/20 72.14.192.0/18 74.125.0.0/16 108.177.8.0/21 173.194.0.0/16 209.85.128.0/17 216.58.192.0/19 216.239.32.0/19 _netblocks2.google.com 2001:4860:4000::/36 2404:6800:4000::/36 2607:f8b0:4000::/36 2800:3f0:4000::/36 2a00:1450:4000::/36 2c0f:fb50:4000::/36 _netblocks3.google.com 172.217.0.0/19 172.217.32.0/20 172.217.128.0/19 172.217.160.0/20 172.217.192.0/19 172.253.56.0/21 172.253.112.0/20 108.177.96.0/19 35.191.0.0/16 130.211.0.0/22
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 TXT MTA-STS record.
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
SPF must allow Google servers to send mail on behalf of your domain.
done
MX lookup must fit in one UDP response packet.
done
TXT lookup should fit in one UDP response packet.
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