Auth Inbox 📬

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Auth Inbox is an open-source, self-hosted email verification code platform built on Cloudflare's free serverless services. It automatically processes incoming emails, filters out promotional mail before hitting the AI, extracts verification codes or links, and stores them in a database. A modern React dashboard lets administrators review extracted codes, inspect raw emails, and render HTML email previews — all protected by Basic Auth.

Don't want ads and spam in your main inbox? Need a bunch of alternative addresses for signups? Try this secure, serverless, lightweight service!

flowchart LR
    A([Your Inboxes]) --> B[Email Worker]
    B --> C{Promotional?}
    C -->|Yes| D[Discard]
    C -->|No| E[AI Extraction]
    E --> F[(D1 Database)]
    F --> G[React Dashboard]
    F --> H([Bark iOS Push])

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Table of Contents 📑

• Features
• Technologies Used
• Installation
• License
• Screenshots

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Features ✨

• Promotional Filter: Detects and skips bulk/marketing emails via headers (List-Unsubscribe, Precedence: bulk, etc.) before calling the AI — saves tokens.
• AI Code Extraction: Uses Google Gemini (with OpenAI as fallback) to extract verification codes, links, and organization names.
• Modern Dashboard: React 18 + shadcn/ui interface with mail list, detail panel, and three tabs — Extracted, Raw Email, Rendered HTML preview.
• Safe HTML Preview: Email HTML is sanitized with DOMPurify and rendered in a sandboxed iframe.
• One-click Copy: Verification codes and links have copy buttons with toast confirmation.
• Real-Time Notifications: Optionally sends Bark push notifications when new codes arrive.
• Database: Stores all raw emails and AI-extracted results in Cloudflare D1.

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Technologies Used 🛠️

• Cloudflare Workers — Serverless runtime for email handling and API.
• Cloudflare D1 — SQLite-compatible serverless database.
• Cloudflare Email Routing — Routes incoming emails to the Worker.
• React 18 + Vite + Tailwind CSS + shadcn/ui — Frontend dashboard.
• Any OpenAI-compatible / Anthropic AI provider — Configurable via env vars; Gemini, OpenAI, DeepSeek, Groq, Anthropic, and more.
• Bark API — Optional iOS push notifications.
• TypeScript — End-to-end type safety.

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Installation ⚙️

Prerequisites

• A Google AI Studio API key
• A domain bound to your Cloudflare account
• Cloudflare Account ID and API Token from here
• (Optional) Bark App for iOS push notifications

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Option 1 — Deploy via GitHub Actions

1. Create D1 Database

   Go to Cloudflare Dashboard → Workers & Pages → D1 SQL Database → Create. Name it inbox-d1.

   Open the database → Console, paste and run the contents of db/schema.sql.

   Copy the database_id for the next step.

2. Fork & Deploy

   

   In your forked repository, go to Settings → Secrets and variables → Actions and add:

   • CLOUDFLARE_ACCOUNT_ID
   • CLOUDFLARE_API_TOKEN
   • TOML — use the comment-free template to avoid parse errors.

   Then go to Actions → Deploy Auth Inbox to Cloudflare Workers → Run workflow.

   After success, delete the workflow logs to avoid leaking your config.

3. Jump to Set Email Forwarding.

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Option 2 — Deploy via CLI

1. Clone and install

   git clone https://github.com/TooonyChen/AuthInbox.git
   cd AuthInbox
   pnpm install

2. Create D1 database

   pnpm wrangler d1 create inbox-d1
   pnpm wrangler d1 execute inbox-d1 --remote --file=./db/schema.sql

   Copy the database_id from the output.

3. Configure

   cp wrangler.toml.example wrangler.toml

   Edit wrangler.toml — at minimum fill in:

   [vars]
   FrontEndAdminID       = "your-username"
   FrontEndAdminPassword = "your-password"
   UseBark               = "false"
   
   # AI provider — choose any compatible service
   AI_BASE_URL    = "https://generativelanguage.googleapis.com/v1beta/openai"
   AI_API_KEY     = "your-api-key"
   AI_API_FORMAT  = "openai"
   AI_MODEL       = "gemini-2.0-flash"
   
   [[d1_databases]]
   binding       = "DB"
   database_name = "inbox-d1"
   database_id   = "<your-database-id>"

   AI_API_FORMAT options:

   Value	Endpoint	Compatible providers
   openai	/v1/chat/completions	OpenAI, Gemini (OpenAI-compat), DeepSeek, Groq, Mistral, …
   responses	/v1/responses	OpenAI Responses API
   anthropic	/v1/messages	Anthropic Claude

   Common AI_BASE_URL values:

   OpenAI:              https://api.openai.com
   Gemini (OAI-compat): https://generativelanguage.googleapis.com/v1beta/openai
   Anthropic:           https://api.anthropic.com
   DeepSeek:            https://api.deepseek.com
   Groq:                https://api.groq.com/openai
   

   Optional fallback provider (triggered if primary fails after 3 retries):

   # AI_FALLBACK_BASE_URL   = "https://api.openai.com"
   # AI_FALLBACK_API_KEY    = "your-fallback-key"
   # AI_FALLBACK_API_FORMAT = "openai"
   # AI_FALLBACK_MODEL      = "gpt-4o-mini"

   Optional Bark vars: barkTokens, barkUrl.

4. Build and deploy

   pnpm run deploy

   Output: https://auth-inbox.<your-subdomain>.workers.dev

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3. Set Email Forwarding ✉️

Go to Cloudflare Dashboard → Websites → <your-domain> → Email → Email Routing → Routing Rules.

Catch-all (forwards all addresses to the Worker):

Custom address (forwards a specific address):

4. Done! 🎉

Visit your Worker URL, log in with the credentials you set, and start receiving verification emails.

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License 📜

MIT License

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Screenshots 📸

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Acknowledgements 🙏

• Cloudflare Workers for the serverless platform.
• Google Gemini AI for intelligent email extraction.
• Bark for real-time notifications.
• shadcn/ui for the component library.
• Open Source Community for the inspiration.

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TODO 📝

• GitHub Actions deployment
• OpenAI fallback support
• React dashboard with shadcn/ui
• Promotional email filter (skip ads before LLM)
• Raw email viewer + sandboxed HTML preview
• Regex-based extraction as an AI-free option
• Multi-user support
• More notification methods (Slack, webhook, etc.)
• Sending email support