Google Admin Toolbox
Domain name

error oeko-sys.ch

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
SPF must allow Google servers to send mail on behalf of your domain.
Decisiondomain owner discourages use of this host
Recordv=spf1 ip4:84.253.4.113/23 ~all
warning
DKIM is not set up.
warning
MTA-STS DNS Record.
If your domain wants to use MTA-STS (optional), the MTA-STS TXT record must comply with RFC8461.
Domain _mta-sts.oeko-sys.ch. not found.
warning
No Google mail exchangers found. Relayhost configuration?
If you intentionally set up a mail server somewhere on your premises that automatically forwards all incoming mail to Google you may disregard this warning. Otherwise - this is a serious configuration error as it causes disruption of mail flow.
10webserver.oeko-sys.ch
info_outline
Effective SPF Address Ranges.
The following IP addresses are taken from the includes and IP4/IP6 directives within this domains SPF record.
oeko-sys.ch.
84.253.4.113/23
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
Formatting of DMARC policies.

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