Email deliverability is the ability to successfully land emails in subscribers' inboxes rather than spam folders or being blocked entirely.

Why It Matters

If emails do not reach the inbox, nothing else matters. Poor deliverability means:

  • Wasted effort creating emails nobody sees
  • Lost revenue from undelivered campaigns
  • Damaged sender reputation
  • Potential blacklisting

Factors Affecting Deliverability

View Key Factors

Sender Reputation: Your history of sending practices
List Quality: Valid, engaged subscribers
Authentication: SPF, DKIM, DMARC properly configured
Content: Spam trigger words, image-to-text ratio
Engagement: Opens and clicks signal quality to ISPs

Best Practices

  • Use double opt-in for new subscribers
  • Clean your list regularly (remove bounces and inactive)
  • Authenticate your sending domain
  • Maintain consistent sending patterns
  • Make unsubscribing easy
  • Avoid spam trigger words

We monitor deliverability metrics and take proactive steps to maintain inbox placement.