# 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 |


![Emailable email score details](https://cdn.sanity.io/images/6ukvxgr7/production/54ca3bc32a631407b41c0baabce2fc8963e8f81d-1734x650.png)

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.