The mail hub for
modern teams.
Manage multi-domain mail, automate workflows through APIs, and run a private, scalable mail hub on your own Cloudflare account.
Sponsored by
Core capabilities
Designed around mail operations, not feature clutter
From domain setup to message handling, the interface follows a clear information hierarchy so teams can complete frequent tasks quickly.
Unified management for multiple domains and mailboxes
Manage multiple business domains and email addresses in one console, with clear separation between sending, receiving, and operations.
Multi-account security model
Manage everything from a primary account while assigning dedicated accounts and permissions to teammates or AI agents.
API-first and AI-agent ready
Use a complete mail API for sending and receiving workflows, designed for automation and AI agents.
Private deployment by default
Deploy Celerbox into your own Cloudflare account so mail data, storage, and operational controls stay under your ownership.
Cloudflare edge mail processing
Built on Workers, D1, and R2 for a lightweight architecture that is simple to operate and easy to scale.
Exceptional cost efficiency
Get production-grade mail capabilities on Cloudflare infrastructure with minimal deployment and almost no operational overhead.
Deployment path
Launch your mail system in three steps
Configure domains and routing
Connect your business domains to Cloudflare and route incoming mail to the Worker entrypoint.
Create addresses and assign responsibilities
Create addresses by team or workflow and manage their status from one place.
Process and archive mail
Read, mark, move, reply, and forward messages from a single interface with a traceable workflow.
PRIVATE DEPLOYMENT
Your code. Your cloud. Your control.
Celerbox runs in your Cloudflare account, giving your team a production-grade mail hub with private infrastructure, controlled access, and clear ownership of operational data.