Mailgun DKIM Failing: Configure DKIM Records for Mailgun
Your Mailgun DKIM signature validation is failing
Fix within 24 hours.
Check your Mailgun DKIM setup:
In Mailgun dashboard, verify your domain status
Check if DKIM tokens are published in DNS
Use DKIM record checker to confirm configuration
What Could Be Causing This?
Mailgun DKIM Tokens Not Published in DNS
Most CommonMailgun provides DKIM tokens, but you must publish them as CNAME records in DNS.
How to confirm:
In Mailgun dashboard, check if DKIM status shows "verified". If not, DNS records are missing.
Fix Playbook
Step 1: Publish Mailgun DKIM Tokens in DNS
- In Mailgun dashboard, copy your DKIM tokens (CNAME records)
- Add CNAME records to your domain's DNS
- Wait for DNS propagation (5 min to 48 hours)
- Mailgun confirms when DKIM is verified
Mailgun-Specific Note:
Mailgun DKIM setup requires CNAME records — copy exactly from Mailgun dashboard.
Prevention Checklist
- Verify DKIM tokens are published in DNS
- Monitor DKIM status in Mailgun dashboard
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