---
title: Email Checker
description: Validate email addresses with MX and deliverability checks.
---

# Email Checker

Validate an email address — checks syntax, MX records, and deliverability.

<Warning>
Requires an API key. Run `devv login <key>` first.
</Warning>

## Commands

```bash
devv email user@example.com
devv email test@nonexistent-domain.xyz
```

## Examples

```bash
# Validate before sending
devv email josh@devv.tools

# Check a suspicious address
devv email bounce@invalid.test
```

## Output

```
Email:        josh@devv.tools
Syntax:       ✓ Valid
MX Records:   ✓ Found (mx.devv.tools)
Deliverable:  ✓ Yes
Disposable:   ✗ No
```

## Pipeline Usage

| Pipeline ID | Description |
|-------------|-------------|
| `email-checker` | Email validation |

```bash
devv pipe exec "email-checker" "user@example.com"
```

### Behavior

Takes an email address as input, returns validation results.