Email Score
A confidence-based score to support email verification results.
Every email verified in Emailable is assigned an Email Quality Score ranging from 0 to 100.
This score represents the overall likelihood of successful delivery and is calculated using a combination of validation checks, verification signals, and supporting data points.
While the score provides a helpful numerical reference, it is intended to be used alongside the verification state, not as a replacement for it.
Score Ranges
| Score | Category |
|---|---|
| 80-100 | Deliverable |
| 1-79 | Risky |
| 0 | Undeliverable |
The Email Quality Score is a reference metric.
For decision-making, you should primarily rely on the verification state:
- Deliverable
- Undeliverable
- Risky
- Unknown
- Duplicate
The state reflects the final classification of the email, while the score indicates the confidence level behind that classification.
How the Score Is Determined
The Email Quality Score is derived from multiple layers of analysis performed during verification.
These include:
Verification checks
- Syntax validation
- Domain validation
- Mail server (MX) availability
Verification Signals
- SMTP-level mailbox verification
- Server response behavior
- Deliverability confirmation signals
Supporting Data Points
- Domain configuration and reliability
- Mail server quality and provider behavior
- Detection of patterns that may impact deliverability
These signals are combined to produce a final score that reflects the confidence level of the email address.