How to Use the Mailgun (Transactional Email & Domains) MCP in Claude

Q: How do I configure Mailgun (Transactional Email & Domains) with Claude Desktop?

Open your claudedesktopconfig.json file and add the Mailgun server under the mcpServers key. Provide your API key and domain configuration as environment variables, then restart the app.

Q: Can I send templates using Mailgun (Transactional Email & Domains) in Claude Desktop?

Yes, you can. Claude Desktop calls gettemplates to fetch your layout, formats the variables, and uses sendemail to deliver the message.

Q: Can I remove a suppressed email from the suppression list?

Yes. You can ask the agent to run deletebounce on a specific email address, which permanently removes it from your Mailgun bounce list.

Send transactional emails and pull real-time domain logs directly inside Claude Desktop using this MCP Server.

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Connect Mailgun (Transactional Email & Domains) MCP to Claude Desktop

Create your Vinkius account to connect Mailgun (Transactional Email & Domains) to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Mailgun (Transactional Email & Domains) with Claude Desktop

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Send and preview transactional emails in your chat

Ask Claude Desktop to draft and send a transactional message with `send_email`. Your AI client pulls your HTML layouts via `get_templates` to make sure the formatting is right before firing off the message. If you want to check if a user's address is valid first, the server runs `validate_email`. You see the exact status in your chat without switching to the Mailgun dashboard or running terminal commands.

Debug delivery failures directly in the desktop app

When a user complains they didn't get an activation email, ask Claude Desktop to search raw events with `list_logs`. Your agent scans the delivery history, drops, and bounces for that specific recipient. If the address is blocked, you can clear it right away. Use `list_bounces` to find the block, then call `delete_bounce` to remove it from the suppression list so they can try again.

Track domain reputation using this MCP Server

Monitor your sending domains right from the sidebar. The MCP server uses `list_domains` to show active domains and `get_domain` to check if your DNS records are configured correctly. Pull delivery stats with `get_stats` to see your bounce and open rates. You can also run `list_unsubscribes` to see who opted out, helping you keep your list clean before your sender score drops.

Setup guide

Set up Mailgun (Transactional Email & Domains) MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Mailgun (Transactional Email & Domains) MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Mailgun (Transactional Email & Domains) MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under mailgun-transactional-email-domains-mcp.

json

{
  "mcpServers": {
    "mailgun-transactional-email-domains-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Mailgun. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Mailgun (Transactional Email & Domains) MCP in Claude Desktop

Open your claude_desktop_config.json file and add the Mailgun server under the mcpServers key. Provide your API key and domain configuration as environment variables, then restart the app.

Yes, you can. Claude Desktop calls `get_templates` to fetch your layout, formats the variables, and uses `send_email` to deliver the message.

Just ask Claude Desktop to check your bounces. The client runs `list_bounces` and displays the suppressed addresses directly inside your chat window.

Yes. You can ask the agent to run `delete_bounce` on a specific email address, which permanently removes it from your Mailgun bounce list.

Your Mailgun API keys, recipient email addresses, and raw delivery logs are processed locally through the Claude Desktop MCP connection. Vinkius runs the server in an isolated sandbox, meaning your sending metrics and subscriber data are never saved or exposed to external parties.

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