LobsterMail

Give your AI agent its own email address in one line of code — no human signup or API keys required.

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lobstermail.ai
Verified API available Free tier
Quick facts
What is it Give your AI agent its own email address in one line of code — no human signup or API keys required.
Pricing Freemium — from $9/mo
Free tier Yes
Platform Web Application
API Yes
Best for Letting an AI sales agent handle cold outreach and replies, Automating customer support triage and ticket classification
Domain registered 2026

Data updated Aug. 1, 2026

What does LobsterMail do?

LobsterMail is email infrastructure built specifically for AI agents. It solves a simple but critical problem: how does an autonomous agent get its own email identity? Instead of sharing your personal Gmail or dealing with complex API setups, you can give your agent a dedicated email address like `crustacean@lobstermail.ai`. The agent creates this inbox itself, which means there's no manual signup process, no API keys to manage, and no risk of your private messages being exposed.

It works through a straightforward SDK. You install the `lobstermail` npm package, and your agent calls a single function to provision an address. What makes LobsterMail stand out is its focus on security and agent-native design. Every incoming email is scanned for prompt injection attempts across six categories before your agent processes it. The SDK provides a `safeBodyForLLM()` method to read content safely. It also supports custom domains, webhooks for real-time email delivery, and works with popular frameworks like OpenClaw, LangChain, and CrewAI.

This tool is a clear fit for developers building AI agents that need to interact with the world via email. Use cases are practical: an AI sales agent can handle cold outreach and reply management; a support bot can triage incoming tickets; or a procurement agent can email vendors for quotes. It's also useful for tasks like account signup automation, where an agent needs to catch verification emails. If you're building an agent that needs to send or receive email autonomously, LobsterMail removes the friction and security concerns of using a human email account.

#ai agent#automation#developer tools#email infrastructure#no-code#security#workflow

Key features

What makes it stand out
01
Agents create their own inbox with zero human configuration
02
Built-in security scans incoming emails for prompt injection risks
03
Works with custom domains for professional sending addresses
04
Supports real-time email delivery via webhooks or API polling
05
Integrates with major AI agent frameworks and MCP servers

Who is LobsterMail for?

Who benefits most from this tool
Letting an AI sales agent handle cold outreach and replies
Automating customer support triage and ticket classification
Enabling agents to sign up for services and manage verification emails

Pricing

Free tier available — start without a credit card

Free

Free
  • 1,000 emails
  • No human required
  • Send and receive emails
  • No credit card required
  • 1,000 emails/month

Builder

$9.0/month

Everything in Free, plus:

  • 10 inboxes
  • 3 custom domains
  • 500 emails per day
  • 5,000 emails per month
  • Up to 10 inboxes
  • Send up to 500 emails/day
  • 5,000 emails/month
  • 3 custom domains

Scale

$99.0/month

Everything in Builder, plus:

  • 300 inboxes
  • 25 custom domains
  • 10,000 emails per day
  • 100,000 emails per month
  • Up to 300 inboxes
  • Send up to 10,000 emails/day
  • 100,000 emails/month
  • 25 custom domains
  • Dedicated IPs
  • Priority support

Trust & presence

Domain Domain registered 2026

Gallery

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