Email Authentication Check

Prompt
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Provide a checklist for email authentication and technical deliverability factors to ensure cold emails reach prospect inboxes rather than spam folders.
Who it’s for?
  • Technical email marketers
  • IT teams
  • email infrastructure specialists
Smartlead Use Case
  • Great for technical optimization campaigns ensuring proper email setup and authentication
Prompt
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EMAIL DELIVERABILITY CHECKLIST:

DOMAIN AUTHENTICATION:
☐ SPF record configured correctly
☐ DKIM signature enabled and verified
☐ DMARC policy set to appropriate level
☐ Domain reputation monitored
☐ Subdomain setup for cold outreach

CONTENT OPTIMIZATION:
☐ Text-to-image ratio above 80:20
☐ No spam trigger words in subject/body
☐ Proper HTML structure and formatting
☐ No excessive links (max 2-3 per email)
☐ Unsubscribe link included

SENDING PRACTICES:
☐ Gradual volume ramp-up
☐ List hygiene and validation
☐ Engagement tracking and monitoring
☐ IP warming if using dedicated IP
☐ Regular blacklist monitoring

SCORING: Each item = 5 points (100 total)
90-100: Excellent deliverability
80-89: Good deliverability 
70-79: Needs improvement
<70: High spam risk

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