p=none
Monitoring only
What it does
Receiving servers deliver every email normally and send you aggregate reports about who passed and who failed authentication. No mail is blocked or filtered. This is what your scanner sees and flags.
When you should be here
You should be here for at least 30 days while you discover every legitimate sender and clean up SPF/DKIM. p=none is a starting point, not a misconfiguration — the real problem is when domains stay here forever.