FounderMail

Key facts: FounderMail is email for founders who ship on Cloudflare. Bring your Cloudflare account and domains and a small proxy sits in your account: mail comes in through it, your replies go out the same way, and FounderMail runs the mailbox behind it. Assign inboxes to as many people or agents as you like, with addresses on your own domain, and give an agent a seat on any inbox, with reading and sending as separate scopes so read-only means read-only. It ships a REST API, OAuth and two MCP servers, one for mail and one for the control plane, and mail leaves from your domain with your own DKIM, SPF and DMARC.

Plans: 14 days free, with no card. Pay for mail, not for people: a dollar a gigabyte, and never a seat.

Best for: Founders on Cloudflare who want agents working email on their own domain. Who should skip it: anyone not on Cloudflare, or anyone who wants a plain personal mailbox.

Pros

• Real mailboxes on your own domain, for people and agents alike
• Pay a dollar a gigabyte, never per seat: adding people or agents costs nothing extra
• Two MCP servers with separate tokens, so a mail token is refused by the control plane
• Mail leaves with your own DKIM, SPF and DMARC, so your domain builds its own reputation

Watch out for

• You need a Cloudflare account and domains: it is built for founders who ship there
• 14 days free, then usage-based: heavy mail costs more than a flat plan
• A new product, so agent judgement in the inbox needs a human check

Best for

Founders on Cloudflare who want agents working email on their own domain. Who should skip it: anyone not on Cloudflare, or anyone who wants a plain personal mailbox with a flat price.

Pricing

14 days free, no card. Then $1 per gigabyte of mail. Never per seat.

FAQs

What is FounderMail? Email for founders who ship on Cloudflare: real mailboxes on your own domain, for you and your agents, without the setup or maintenance.

How does it work? A small proxy sits in your Cloudflare account. Mail comes in through it and replies go out the same way; FounderMail runs the mailbox behind it.

Can agents read my email? Only if you give them a seat, and reading and sending are separate scopes, so read-only means read-only.

How much does it cost? 14 days free, no card. Then a dollar a gigabyte of mail, and never per seat.