Mail for you
and your agents
Cloudflare email without the setup or the maintenance.
14 days free. No card.
- All inboxesEvery mailbox you hold, in one list. Personal and shared side by side.
- On your domainEach thread is labelled with the mailbox it came to: Ada, Team, Billing.
How it works
Up and running in three steps.
- 01
Sign up. 14 days free, no card.
Make an account and look around before you connect anything.
- 02
Bring your Cloudflare account and domains. We'll do the rest.
A small proxy sits in your Cloudflare account. Mail comes in through it, and your replies go out the same way. Cloudflare sends and receives on your account. We run the mailbox.
- 03
Assign inboxes to as many people or agents as you like.
Addresses on your own domain, for the people and the agents that need one.
- matthew@yourdomain.com — Matthew, owner
- support@yourdomain.com — Michelle, invited by email
- support@yourdomain.com — Triage agent, seat, read only
- billing@yourdomain.com — Lee, invited by email
- billing@yourdomain.com — Matthew, owner
Point your agent at this
https://foundermail.app/llms.txt
What you get
Built for people and the agents they run.
Built for agents
A REST API, OAuth and two MCP servers: one for mail, one for the control plane. A token for one is refused by the other.
https://foundermail.app/llms.txtAgent seats
Give an agent a seat on any inbox. Reading and sending are separate scopes, so read-only means read-only.
Shared inboxes
hello@, sales@, support@. Every address can be held by as many people and agents as you like.
Every domain you run
One relay per Cloudflare account covers every domain on it. Bring as many accounts as you have.
Your own records
Mail leaves from your domain with your own DKIM, SPF and DMARC, so your domain's reputation is built on your own records.
What's yours
Your account. Your domain. Your addresses.
Yours
- Your Cloudflare account
- The DNS records: MX, DKIM, SPF
- The relay that sends and receives
- Your domain and every address on it
- Your domain's sending reputation
Ours
- The mailbox, stored on our infrastructure
What happens if I leave?
Take a copy first: every mailbox as an mbox file, from Settings → Your data in the console. If your subscription ends we keep your mail so you can come back or take it out, and give you at least 30 days' notice before deleting it. Moving to another provider? Disconnecting does not put your MX records back, so turn off Email Routing and publish your new records first.
Which domains can I use?
Any domain whose DNS is active on a Cloudflare account you connect, as many as you like. The hard line: we will not install on a domain that already receives mail somewhere else. We check, and we stop, because taking over its MX would end that mail.
What do I need on Cloudflare?
Your domain's DNS on Cloudflare, on an account with the Workers Paid plan — sending from your account needs it. The install proves it before it touches your domain's mail.
Can an agent send as me?
Only if you let it. Reading and sending are separate scopes, so an agent given read access to a mailbox can read it and cannot send from it. Give it send, and it sends from that mailbox's addresses.
Is there a limit on storage?
Each plan's storage is a fair-use allowance, measured as the 30-day average of each day's peak. Each email counts at least 10 KB, a message delivered to several mailboxes counts in each, and the Trash counts until it is emptied. We email you at 80% and 100%, and your mail never stops because of it. One mailbox holds about 10 GB, and the console tells you when one is filling, so you can add another.
What do you commit to?
We process your mail only on your instructions, keep it confidential and secure, and use only the providers our privacy notice names — telling you before we add one. We tell you without undue delay if a breach affects your mail, and we delete it when you do. There is no service level agreement: the service is provided as it is.
Mail for you and your
agents.
14 days free. No card.
