What are the best email testing tools?

# Best Email Testing Tools

## All-in-One Testing Platforms

| Tool | Best For | Key Features |

|------|----------|--------------|

| **Litmus** | Comprehensive testing | 100+ client previews, spam testing, analytics |

| **Email on Acid** | Pre-send testing | Client previews, accessibility checks, analytics |

| **Mailtrap** | Developer testing | Fake SMTP, API testing, team collaboration |

## Deliverability & Spam Testing

- **Mail-Tester** - Free spam score checker

- **GlockApps** - Inbox placement testing

- **MXToolbox** - DNS/blacklist checking

- **Postmark Spam Check** - Simple spam analysis

## Developer-Focused Tools

- **Mailtrap** - Safe email sandbox environment

- **Mailhog** - Open source local testing

- **Ethereal Email** - Fake SMTP service (free)

- **Papercut** - Local SMTP testing

## Rendering & Preview Tools

- **Testi@** - Quick email previews

- **Putsmail** - Free HTML email testing

- **Beefree** - Design and preview tool

## Accessibility Testing

- **Accessible Email** - Accessibility analysis

- **Litmus Accessibility** - Built into Litmus

## Key Features to Look For

- ✅ Multiple email client previews

- ✅ Spam score analysis

- ✅ Mobile rendering checks

- ✅ Link validation

- ✅ Load time testing

**Most popular choices:** Litmus and Mailtrap for most use cases.

Would you like details on any specific tool?