Real testing tools
Not console.log, not "works on my machine." A real SMTP server that captures every email with full headers and MIME structure.
Developer experience
One config change and every email in your app is captured, analyzed, and searchable. Set up in under 60 seconds.
Security first
Argon2id password hashing, per-inbox credential isolation, cryptographic sessions, and zero data sharing. Ever.
Full transparency
Spam scoring, HTML compatibility across 12 clients, header inspection, and raw MIME access. See what your users will see.
The Platform
MailHog runs a production-grade SMTP server with per-inbox authentication, real-time message delivery via Server-Sent Events, and automated analysis including spam scoring (rspamd-compatible) and HTML compatibility checking across 12 email clients.
Every email is captured with full headers, MIME structure, and attachments — giving you the same visibility you'd have looking at the raw message on a mail server, but in a modern, searchable dashboard.
Get in Touch
Have questions? Reach us at hello@mailhog.site or visit our contact page.