Yes, Mailcannon is free to use.

How do I install Mailcannon?

Mailcannon supports both local and remote installation. For local use, install it via the provided package manager and add the configuration to your AI app. For remote access, add the server URL to your MCP configuration.

Is Mailcannon safe to use?

Mailcannon was flagged by MCP Marketplace's security scan, scoring 3.4/10 (high risk). It has 4 high or critical findings to review. Review the security report on this page carefully before installing it.

What AI apps work with Mailcannon?

Mailcannon uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Mailcannon MCP Server

by AinaLuc

Developer ToolsUse Caution3.4MCP RegistryLocalRemote

Free

Server data from the Official MCP Registry

AI-powered email outreach platform — send campaigns with deliverability tracking.

About

AI-powered email outreach platform — send campaigns with deliverability tracking.

Remote endpoints: streamable-http: https://www.thinkandautomate.dev/api/mcp

Security Report

3.4

Use Caution3.4High Risk

MailCannon is an email outreach platform with reasonable authentication on most endpoints, but has several security concerns that warrant attention. Public endpoints lack proper input validation and error handling, sensitive tokens are stored in environment variables without clear protection guarantees, and the OAuth implementation uses in-memory state storage that could be lost in multi-instance deployments. Additionally, there are potential authorization bypass risks and insufficient validation of user-provided data in critical operations. Supply chain analysis found 5 known vulnerabilities in dependencies (0 critical, 1 high severity).

5 files analyzed · 21 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

process_spawn

Check that this permission is expected for this type of plugin.

system_info

Check that this permission is expected for this type of plugin.

How to Install & Connect

Available as Local & Remote

This plugin can run on your machine or connect to a hosted endpoint. during install.

Documentation

View on GitHub

From the project's GitHub README.

MailCannon

AI-powered email outreach platform using MCP (Model Context Protocol).

Setup

npm install

Development

npm run dev

MCP Providers

Gmail MCP — send via Google's Gmail API
Zoho MCP — send via Zoho Mail API

Configure provider credentials in .env.

Reviews

No reviews yet

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Mailcannon MCP Server

About

Security Report

Findings (21)Action required

Permissions Required

How to Install & Connect

Documentation

MailCannon

Setup

Development

MCP Providers

Reviews

No reviews yet

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