DMARC enforces SPF and DKIM by publishing a policy to either reject or quarantine untrusted messages.
You do not currently have a DMARC policy.
Mail servers may accept untrusted messages, and you may be subject to phishing attacks from your email addresses.
To fix this, install a DMARC record to reject emails that fail SPF or DKIM.
Once you have installed your DKIM records and verified SPF is correct, you can edit your DNS and change the record.
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Install the record: _dmarc.tryoncord.com TXT
v=DMARC1; p=reject
Install DMARC for Me