Rapid Inbox

Self-hosted, local-first temporary inbox for receiving inbound email during development.

PlatformWebfreeglobal

Rapid Inbox is a self-hosted, local-first temporary inbox for receiving inbound email, built for developers and test teams verifying signup flows or transactional email. A C++ SMTP engine receives mail and stores it, along with attachments and audit records, on local disk and in SQLite, with an admin console and HTTP API. It suits developers who want disposable test email on their own infrastructure instead of a third-party service.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Rapid Inbox - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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