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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.
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Find anything
Full-text search (FTS5) across subject, body, sender, and recipients.
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Real-time inbox
WebSocket push — new mail shows up the moment it arrives. Dark mode included.
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Built for CI
REST assertion endpoints, a CLI assert mode, and a GitHub Action for your test pipelines.
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One binary, no deps
The frontend is embedded at compile time. Drop it on a server and run it.
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REST API + OpenAPI
Full API with an OpenAPI 3.1 spec. Export emails, release to real SMTP, get webhook notifications.