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Postbox
Postbox is a lightweight web mailbox deployed to a Cloudflare account for managing custom domain email.
Postbox is a lightweight web mailbox that you deploy to your own Cloudflare account to bring multiple domains and addresses into a single inbox. It handles email reading, replying using the receiving address, search, conversations, folders, labels, contacts, and attachments. The system provides a private workspace protected by Cloudflare Access sign-in, an email allowlist, and JWT verification inside the Worker. It includes a terminal companion for guided setup, reading mail, and managing drafts. Storage, message data, and access policies remain entirely within your Cloudflare infrastructure.
Postbox at a glance
- Best for: Software engineer
- Runs on: Web, CLI, self-hosted, open source
- Pricing: Free
- Released: October 2026
- Category: AI productivity tool
- Website: github.com/naxalpha/postbox
Key features
- Manage multiple domains and addresses
- Unified inbox with explicit aliases
- Search, conversations, and labels
- Cloudflare Access sign-in and allowlist
- Terminal companion with JSON commands
- Backup, restore, and cleanup tools
- Light, dark, and system themes
Use it for
- Manage multiple custom domains in one inbox
- Send and receive email from personal domains
- Automate tasks using terminal commands
- Deploy a private web mailbox on Cloudflare
Alternatives to Postbox
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- bytemail — Connects directly to email providers without using intermediary servers.
- Google Workspace CLI — Dynamically builds commands from Google's Discovery Service with JSON output.
- Fusebox — Set a monthly spend ceiling and get email alerts at 50, 80, and 100 percent.
- 创意工坊 — Explore and install community-created skins, pets, plugins, and presets.
- نصبکننده و آپدیت ورکر و دیتابیس کلودفلر — Automates Cloudflare worker setup and dynamic sub-link optimization.
- MintPage — Publishes AI-generated text directly to a live, shareable URL.
- Google Workspace MCP — Connects twelve Google Workspace services to AI assistants through one open source server.
- Umbra Mail — It keeps mail private with no tracking and optional local AI.
- Jab — Runs locally in the browser in two milliseconds with no network requests.
- FutureMail — Unlimited addresses and agent-native APIs for one fixed monthly price.
- Fooboard — Tracks the deployment state of every repository and stage at a glance.
All Postbox alternatives