Understanding Policy Phases
None, Quarantine, and Reject explained
Understanding DMARC Policy Phases
DMARC policies tell receiving email servers what to do with emails that fail authentication. DMARC Busta guides you through three phases:
Monitor (p=none)
Emails are delivered normally regardless of authentication results. You receive reports to see what's happening without affecting delivery.
Use when: Starting out, collecting data, identifying legitimate sources
Quarantine (p=quarantine)
Emails that fail authentication are sent to spam/junk folders. Legitimate email still gets through, but suspicious email is flagged.
Use when: 95%+ compliance achieved, sources are stable
Reject (p=reject)
Emails that fail authentication are blocked completely. Maximum protection against spoofing and phishing.
Use when: 99%+ compliance, all sources verified, stable for 30+ days
Gradual Rollout with pct=
DMARC supports a pct= tag that lets you apply the policy to only a percentage
of email. DMARC Busta uses this for safe, gradual progression:
pct=10- Apply policy to 10% of emailpct=25- Apply policy to 25% of emailpct=50- Apply policy to 50% of emailpct=100- Apply policy to all email (default)