HubSpot DMARC Failing: Fix Policy & Alignment Issues
Your HubSpot DMARC policy is failing or showing alignment issues
Fix within 24 hours.
Check your DMARC policy:
Use the DMARC record checker to review your current DMARC policy
Check if policy is set to "reject" or "quarantine"
Verify if SPF and DKIM are aligned with your domain
What Could Be Causing This?
DMARC Policy Too Strict for HubSpot
Most CommonDMARC set to "reject" when HubSpot isn't fully aligned causes legitimate emails to be rejected.
How to confirm:
Check your DMARC record. Look for p=reject or p=quarantine.
Fix Playbook
Step 1: Set DMARC Policy to Monitor First (p=none)
- Edit your DMARC record in DNS
- Set policy to p=none (monitor mode)
- Monitor for 1-2 weeks to understand traffic patterns
- Once you confirm HubSpot alignment, move to p=quarantine
HubSpot-Specific Note:
HubSpot recommends DMARC monitoring before enforcement — follow their guidance for safest deployment.
Prevention Checklist
- Monitor DMARC aggregate reports weekly
- Keep SPF and DKIM aligned with HubSpot
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