Email Server

Created By

yahyamohmuedpro998 months ago

Content

Mailer MCP

A Model Context Protocol (MCP) server for sending emails. This server is designed to be completely SMTP provider agnostic, allowing you to use any SMTP relay service of your choice (Gmail, SendGrid, Mailgun, SMTP2Go, etc.) by simply configuring the appropriate environment variables. The server provides tools for sending emails through SMTP using environment variables for configuration.

Features

Send emails to specified recipients
Test email functionality
Environment variable configuration
Proper error handling and logging
TypeScript implementation for type safety

Installation

Clone the repository:

git clone https://github.com/yourusername/mailer-mcp.git
cd mailer-mcp

Install dependencies:

npm install

Build the project:

npm run build

Configuration

The server requires the following environment variables to be set in the MCP configuration:

Variable	Description	Example
`SMTP_HOST`	SMTP server hostname	smtp.example.com
`SMTP_PORT`	SMTP server port	587
`SMTP_USER`	SMTP username	user@example.com
`SMTP_PASSWORD`	SMTP password	password123
`EMAIL_FROM`	Sender email address	sender@example.com

Optional environment variables:

Variable	Description	Default
`SMTP_SECURE`	Use secure connection (TLS)	false
`SMTP_REJECT_UNAUTHORIZED`	Reject unauthorized TLS certificates	true
`SMTP_TIMEOUT`	Connection timeout in milliseconds	10000

MCP Configuration

Add the following to your Cline MCP settings configuration file:

"email-server": {
  "autoApprove": [],
  "disabled": false,
  "timeout": 60,
  "command": "node",
  "args": [
    "path/to/mailer-mcp/dist/index.js"
  ],
  "env": {
    "SMTP_HOST": "smtp.example.com",
    "SMTP_PORT": "587",
    "SMTP_USER": "user@example.com",
    "SMTP_PASSWORD": "password123",
    "EMAIL_FROM": "sender@example.com"
  },
  "transportType": "stdio"
}

Available Tools

send_email

Sends an email to a specified recipient.

Parameters:

recipient (string, required): Email address of the recipient
body (string, required): Email body content

Example:

{
  "recipient": "recipient@example.com",
  "body": "Hello, this is a test email from the MCP server."
}

test_email

Sends a test email to verify the configuration.

Parameters: None

Development

Start the TypeScript compiler in watch mode:

npm run dev

Make your changes to the source files in the src directory.
The TypeScript compiler will automatically recompile the files when changes are detected.

License

MIT

Server Config

{
  "mcpServers": {
    "email-server": {
      "autoApprove": [],
      "disabled": false,
      "timeout": 60,
      "command": "node",
      "args": [
        "pathToTheBuild/dist/index.js"
      ],
      "env": {
        "SMTP_HOST": "smtp.smtp2go.com",
        "SMTP_PORT": "2525",
        "SMTP_USER": "your-email@example.com",
        "SMTP_PASSWORD": "your-password",
        "EMAIL_FROM": "your-email@example.com",
        "SMTP_TIMEOUT": "30000"
      },
      "transportType": "stdio"
    }
  }
}

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