vaultsandbox/gateway

VaultSandbox is a self-hosted SMTP testing gateway designed to replicate production email behavior—including TLS, DNS, authentication, and spam scoring—so your email tests reflect real-world conditions.

2 best points · 0 comments · 1 Hacker News post · 27 GitHub stars · View on GitHub

Hacker News discussions

• Show HN: VaultSandbox – Real SMTP testing that works on localhost (Apache 2.0) (2 points, 0 comments, by vaultsandbox, 2026-02-25)