Glossary Term

Email Deliverability

The ability of your emails to successfully reach recipients' inboxes rather than being blocked or sent to spam.

What is Email Deliverability?

Email deliverability is the measure of how successfully your emails reach their intended destination - the recipient's primary inbox. It's not just about whether the email was accepted by the receiving server, but whether it actually lands in the inbox where it will be seen.

Deliverability is affected by multiple factors:

  • Technical setup: SPF, DKIM, DMARC authentication
  • Sender reputation: History of sending behavior
  • Content: What's in your email (spam triggers, formatting)
  • Engagement: How recipients interact with your emails
  • Infrastructure: Your sending IP and domain reputation

For cold email, deliverability is everything. An email that lands in spam is essentially not sent at all.

Why It Matters

  • 1Directly determines whether your outreach reaches prospects
  • 2Poor deliverability means wasted effort and burned leads
  • 3Affects your sending reputation in a feedback loop
  • 4Most cold email failures are deliverability problems, not messaging problems

How to Measure

Use our Deliverability Test to check inbox placement across major providers. Monitor bounce rates and spam complaints.

Ready to Start Your Cold Email Campaign?

We handle the technical details - authentication, warmup, deliverability - so you can focus on writing emails that convert.