FutureMail

FutureMail is email hosting for custom domains designed for people and their AI agents.

FutureMail is email hosting for your own domain, built for both people and AI agents. Bring a domain you own to set up DNS records like DKIM, SPF, and DMARC with live checks. It offers unlimited addresses and aliases, a fast keyboard-first inbox with real threading, and production features like webhooks, templates, tracking, and a suppression list. For automation, it provides agent inboxes with scoped API keys, a REST API, a Resend-compatible API, a CLI, and a remote MCP server. It is designed for small businesses, professionals, startups, and AI agents that need to send, receive, and read mail, including extracting one-time codes automatically.

FutureMail at a glance

Best for: Software engineer
Runs on: Web, API, CLI
Pricing: Pro $20/month; no free tier; no per-seat pricing.
Released: October 2026
Category: AI productivity tool
Website: futuremail.dev

Key features

Unlimited custom domains and addresses
Fast keyboard-first web inbox
Agent inboxes with scoped API keys
REST API and Resend-compatible API
CLI for scripts and automation
Remote MCP server for AI clients
Signed webhooks with retries
Team roles and audit logs

Use it for

Hosting professional domain email for teams
Giving AI agents dedicated email inboxes
Automating transactional email sending
Extracting one-time verification codes via API

Alternatives to FutureMail

AgentMail — Enables AI agents to send and receive emails programmatically via REST API.
Resend Inboxes — Build workflows, share inboxes, and connect AI agents directly to email.
bytemail — Connects directly to email providers without using intermediary servers.
Nuvrail — Stages every AI agent email write and send for human sign-off before reaching the mail server.
Postbox — Deploys entirely to your own Cloudflare account for private email management.
Google Workspace MCP — Connects twelve Google Workspace services to AI assistants through one open source server.
Cold Email Killer — Runs securely on Google Apps Script and filters unwanted emails automatically.
Google Workspace CLI — Dynamically builds commands from Google's Discovery Service with JSON output.
Kaiku — Wire-level MCP compatibility lets existing AI agents work without custom bridges.
Noodle Seed — Deploy custom AI agents across websites, apps, ChatGPT, Claude, and WhatsApp.
Umbra Mail — It keeps mail private with no tracking and optional local AI.

All FutureMail alternatives