SMTP Email MCP Server

A Model Context Protocol (MCP) server that provides email sending capabilities for Claude and other MCP-compatible AI assistants.

Features

• Multiple SMTP Configurations: Configure and manage multiple SMTP servers
• Email Templates: Create, update, and use reusable email templates
• Bulk Email Sending: Send emails to multiple recipients with batching and rate limiting
• HTML Support: Full HTML support for rich email content
• Logging: Comprehensive logging of all email activities
• Template Variables: Dynamic content using template variables

Installation

Installing via Smithery

To install SMTP Email Server for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @samihalawa/mcp-server-smtp --client claude

Manual Installation

# Clone the repository
git clone https://github.com/samihalawa/mcp-server-smtp.git
cd mcp-server-smtp

# Install dependencies
npm install

# Build the server
npm run build

Usage

Starting the Server

npm start

Configuration

Add the server to your MCP configuration:

{
  "servers": {
    "smtp-email-server": {
      "command": "/path/to/node",
      "args": ["/path/to/mcp-server-smtp/build/index.js"],
      "enabled": true,
      "port": 3007,
      "environment": {
        "NODE_PATH": "/path/to/node_modules",
        "PATH": "/usr/local/bin:/usr/bin:/bin"
      }
    }
  }
}

Available Tools

send-email

Send an email to one or more recipients.

Parameters:

• to: Array of recipients with email and optional name
• subject: Email subject
• body: Email body (HTML supported)
• from: (Optional) Sender email and name
• cc: (Optional) CC recipients
• bcc: (Optional) BCC recipients
• templateId: (Optional) ID of a template to use
• templateData: (Optional) Data to populate template variables
• smtpConfigId: (Optional) ID of the SMTP configuration to use

send-bulk-emails

Send emails to multiple recipients in batches.

Parameters:

• recipients: Array of recipients with email and optional name
• subject: Email subject
• body: Email body (HTML supported)
• from: (Optional) Sender email and name
• cc: (Optional) CC recipients
• bcc: (Optional) BCC recipients
• templateId: (Optional) ID of a template to use
• templateData: (Optional) Data to populate template variables
• batchSize: (Optional) Number of emails to send in each batch
• delayBetweenBatches: (Optional) Delay in milliseconds between batches
• smtpConfigId: (Optional) ID of the SMTP configuration to use

get-smtp-configs

Get all configured SMTP servers.

Parameters: None

add-smtp-config

Add a new SMTP server configuration.

Parameters:

• name: Name for the configuration
• host: SMTP server hostname
• port: SMTP server port
• secure: Whether to use SSL/TLS
• auth: Authentication credentials (user and pass)
• isDefault: (Optional) Whether this is the default configuration

update-smtp-config

Update an existing SMTP server configuration.

Parameters:

• id: ID of the configuration to update
• name: Name for the configuration
• host: SMTP server hostname
• port: SMTP server port
• secure: Whether to use SSL/TLS
• auth: Authentication credentials (user and pass)
• isDefault: (Optional) Whether this is the default configuration

delete-smtp-config

Delete an SMTP server configuration.

Parameters:

• id: ID of the configuration to delete

get-email-templates

Get all email templates.

Parameters: None

add-email-template

Add a new email template.

Parameters:

• name: Template name
• subject: Email subject template
• body: Email body template (HTML supported)
• isDefault: (Optional) Whether this is the defau

... View full README on GitHub