# Testing Features

Email Sandbox provides a complete suite of testing tools to ensure your emails look perfect and function correctly across all email clients and scenarios.

## Testing Capabilities

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Email Template Inspector</strong></td><td><em>Analyze your email templates in detail. Check rendering, validate structure, and ensure compatibility across different email clients.</em></td><td><a href="testing/email-template">email-template</a></td></tr><tr><td><strong>HTML Check</strong></td><td><em>Validate your HTML email code for errors and compatibility issues. Get recommendations for improving email client compatibility.</em></td><td><a href="testing/email-html">email-html</a></td></tr><tr><td><strong>Email Headers and Bcc</strong></td><td><em>Inspect all email headers including hidden Bcc recipients. Verify that your email configuration is correct and secure.</em></td><td><a href="testing/email-headers-and-bcc">email-headers-and-bcc</a></td></tr><tr><td><strong>Deliverability Tests</strong></td><td><em>Run comprehensive deliverability tests to predict how your emails will perform in production. Check spam scores, authentication, and more.</em></td><td><a href="testing/spam-blacklist-reports">spam-blacklist-reports</a></td></tr><tr><td><strong>Bounce Emulator</strong></td><td><em>Simulate various bounce scenarios to test your application's bounce handling. Ensure your system properly processes different bounce types.</em></td><td><a href="testing/bounce-rate">bounce-rate</a></td></tr><tr><td><strong>Load Testing</strong></td><td><em>Test your email system under high load. Verify performance and identify bottlenecks before they impact production.</em></td><td><a href="testing/load-testing">load-testing</a></td></tr></tbody></table>