FutureMail: Email on your domain, built for people and their AI agents

Email hosting for your own domain, built for people and their AI agents: unlimited addresses, a fast keyboard-first inbox, agent inboxes, a REST API, CLI and remote MCP server (Resend-compatible). $20/month.

Hey Product Hunt 👋 I built FutureMail because my AI agents kept needing email (sign-up codes, receipts, replies from humans) and every option was either a send-only API or a consumer mailbox that agents can't really use. FutureMail is real email hosting on your own domain, where your agents are first-class users: • Agent inboxes: give each agent its own mailbox, address and scoped API key • wait_for_email: long-polls until a matching email lands and hands back the extracted OTP code and links • Remote MCP server for Claude, Cursor and any MCP client, plus a REST API and the fm CLI (npm i -g futuremail) • Resend-compatible API: point the official Resend SDK at FutureMail and keep your code • For humans: a fast, keyboard-first inbox with threading and Gmail-style search, unlimited domains, addresses, aliases and catch-all DNS setup (DKIM, SPF via custom MAIL FROM, DMARC) is generated for you with live verification. Pro is $20/month with 50,000 recipients and hard caps, so no surprise overage bills. I'd love your feedback, especially on what your agents need from an inbox. I'll be here all day answering questions!

I was actually just hacking together something similar, and this looks really nice.

When you say 50,000 recipients each month, what does that mean? Is that allowing me to send an unlimited amount of emails to anyone so long as I don't send to more than 50,000 unique email addresses? I think you mean total emails sent, but I'm not sure.

What kind of hard caps do you have?

What kind of data retention do you have? I don't see anything related to whether or not emails are stored or are transient.

I was actually just hacking together something similar, and this looks really nice.

What kind of hard caps do you have?

What kind of data retention do you have? I don't see anything related to whether or not emails are stored or are transient.