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D, Sales Glossary

Domain Health

Overall reputation and deliverability status of sending domain.

What is Domain Health?

Domain health is the overall condition of your sending domain's reputation, authentication, and deliverability status. It's a composite measure of whether your emails are likely to reach the inbox based on your domain's history and current practices.

Domain Health Components:

ComponentWhat It MeasuresImpact
Reputation ScoreHow email providers view your domainPrimary factor
AuthenticationSPF, DKIM, DMARC statusRequired for 2024
Placement Rate% reaching inbox vs spamActual results
EngagementOpens, clicks, repliesFuture predictor
ComplaintsSpam reportsDamage indicator
BouncesFailed deliveriesHealth killer

Healthy domain = emails reach the inbox. Unhealthy domain = emails go to spam or get blocked.

Why Domain Health Matters

Health Impact on Business:

  • Revenue: Poor placement = fewer opens = fewer responses = less revenue
  • Sender Score: Domain health affects all future sending
  • Time to Recovery: Damaged domains take months to heal
  • Alternative Cost: May need to abandon domain and start over
The 2024 Reality: Gmail and Yahoo now require authentication AND healthy sending practices. Domain health encompasses both technical setup and sending behavior.

Benchmarks

Recovery Timeline:

  • Minor damage: 2-4 weeks to recover
  • Moderate damage: 1-2 months
  • Severe damage: 3-6 months or abandon domain

Best Practices

  1. Monitor Weekly: Check domain health metrics every week
  2. Use Testing Tools: Regular deliverability tests catch issues early
  3. Fix Problems Fast: Address health issues before they compound
  4. Maintain Authentication: Keep SPF, DKIM, DMARC current
  5. Clean Lists Regularly: Remove inactive and invalid addresses
  6. Respect Spam Complaints: Remove compliers immediately
  7. Track by Provider: Monitor Gmail vs. Outlook separately
  8. Have Backup Domains: Never rely on single domain

Common Mistakes

  • Not checking domain health until problems are severe
  • Ignoring early warning signs (slight placement decline)
  • Assuming because emails "send" they're being delivered
  • Not monitoring spam folder placement
  • Letting bounce rates climb before acting
  • Sending from domains with past reputation issues
  • Not having alternative domains ready
  • Confusing delivery rate with inbox placement

Key Takeaways

  • Domain health = overall condition of your email sending reputation
  • Check health weekly using testing tools and provider dashboards
  • SPF, DKIM, and DMARC are required but not sufficient for health
  • Engagement, bounce rates, and spam complaints all affect health
  • Damaged domains take months to recover-prevention is critical
  • Have backup domains ready in case of health issues

Sources:

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