Self-hosted email testing platform

Test your HTML emails like a pro.

Preview across viewports, simulate email clients, validate against sending platforms, and keep your data on your own VPS.

Desktop, tablet, mobile and custom widths.

Gmail, Outlook, Apple Mail, Samsung, Thunderbird.

Encrypted at rest, retention controls, self-hosted.

Public share links with expiration and QR codes.

Pass/fail dashboards and historical insights.

Spam scores, link validation, and provider audits.