Emails survive restarts
SQLite-backed by default. Use --ephemeral when you just need a throwaway inbox for CI.
RustMailSMTP Mail Catcher
A local mail catcher for dev and CI. Single binary, nothing to install.
Skip to content
Find anything
Full-text search (FTS5) across subject, body, sender, and recipients.
Real-time inbox
WebSocket push — new mail shows up the moment it arrives. Dark mode included.
Built for CI
REST assertion endpoints, a CLI assert mode, and a GitHub Action for your test pipelines.
One binary, no deps
The frontend is embedded at compile time. Drop it on a server and run it.
DKIM / SPF / DMARC
Parses authentication headers with color-coded status badges. No other local mail catcher does this.