{"repo":"vaultsandbox/gateway","free":true,"listed":false,"github":"https://github.com/vaultsandbox/gateway","clone":"git clone https://github.com/vaultsandbox/gateway.git","description":"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.","language":"TypeScript","stars":26,"topics":[],"license":"Apache-2.0","category":"self-hosted-apps","readme_excerpt":"VaultSandbox is in Public Beta. Join the journey to 1.0. Share feedback on GitHub. 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. This repository contains the Gateway: the core backend service and web interface for receiving, validating, and inspecting test emails. 🎯 Key Features - Zero-Config Setup : 1 env var (VSX DNS) or 2 env vars (custom domain) - Production-Ready SMTP : Receive-only server on port 25 with automatic TLS - Email Authentication : Full SPF, DKIM, DMARC, and reverse DNS validation - Automatic Certificates : Let's Encrypt integration with hot-reload - Web Interface : Modern Angular UI at /app endpoint - Configurable Retention : Defaults to 7 days (easily adjusted) - Multi-Node Support : Optional distributed coordination for clusters - Encryption : Secure in-memory storage - Spam Analysis : SpamAssassin-style scoring and detection - Webhooks : HTTP notifications for email events - Chaos Engineering : Test email pipeline resilience - Persistence : Optional inbox and webhook persistence with automatic restoration on startup 📦 Monorepo Components This repository is a monorepo containing two main components: /backend : A NestJS-based backend application providing: - Receive-only SMTP server with SPF/DKIM/DMARC validation - REST API for email access with auto-generated API keys - Automatic Let's Encryp","default_branch":null,"files":null,"tree":[],"storefront":"/r/vaultsandbox","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/vaultsandbox/gateway/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}