How it works

Connect Mailtrap to GitHub Copilot and send transactional or test emails, inspect sandbox inboxes and messages, and manage templates – all via simple prompts. No coding required, just tell the agent what you need, and GitHub Copilot will execute the API call.

Configuration

Step 1: Run GitHub Copilot in your preferred code editor

Step 2: Navigate to settings.json.

Step 3: Paste the following configuration:

{
  "mcpServers": {
    "mailtrap": {
      "command": "npx",
      "args": ["-y", "mcp-mailtrap"],
      "env": {
        "MAILTRAP_API_TOKEN": "your_mailtrap_api_token",
        "DEFAULT_FROM_EMAIL": "your_sender@example.com",
        "MAILTRAP_ACCOUNT_ID": "your_account_id",
        "MAILTRAP_TEST_INBOX_ID": "your_test_inbox_id"
      }
    }
  }
}

Step 4: Replace the placeholder values with your actual Mailtrap credentials.

Step 5: Open the Copilot Chat panel, select Agent mode, and confirm the Mailtrap MCP server appears in the tool list.

Note: DEFAULT_FROM_EMAIL must be an address on a domain you’ve already verified in Mailtrap’s Sending Domains. You can find MAILTRAP_ACCOUNT_ID under Settings → Account Settings, and MAILTRAP_TEST_INBOX_ID in your sandbox inbox URL.

For detailed guidance, including the quick install link and step-by-step credential retrieval, consult the knowledge base article.

Use cases

• Integrate Mailtrap into your project or migrate from another solution.
• Send transactional emails to single or multiple recipients (with CC/BCC).
• Send sandbox emails for safe testing without affecting production.
• Retrieve and search the sandbox inbox messages.
• Create, list, update, and delete email templates.

Supported functionality

• Send transactional emails
• Manage email templates
• Use Email Sandbox for testing
• Track delivery statistics (opens, clicks, bounces)
• Manage sending streams