happyDeliver. Test Your Email Deliverability.

Test Your Email Deliverability

Get detailed insights into your email configuration, authentication, spam score, and more. Open-source, self-hosted, and privacy-focused.

{#if error}

{error}

{/if}

Comprehensive Email Analysis

Your favorite deliverability tester, open-source and self-hostable for complete privacy and control.

{#each features as feature}

{/each}

Simple three-step process to test your email deliverability

{#each steps as stepData}

{/each}