Mailgun MCP Server

Name: Mailgun MCP Server Review
Item: Mailgun MCP Server
Rating: 3.2
Author: Aaron Matthews

Connector Communication Usable

Works inClaude Code Claude Cowork Claude Chat

Usable Scanned — metadata only

API key never exposed to the AI model (stays in env var) — good security design. Covers full Mailgun API surface. Official Mailgun maintenance, Apache-2.0.

Official Mailgun MCP server covering messaging, domain management, webhooks, email routing rules, mailing lists, templates, analytics, suppressions, and IP pool configuration.

Check your email delivery success rates for the past month
Find out which emails are bouncing and clean up your mailing list
Review email analytics to see which campaigns get the most opens

57 starsApache-2.0 (commercial OK)FreeNo code needed

Usable rating — This tool is functional but has notable gaps. Review the evaluation notes below before deploying.

Why it matters

API key never exposed to the AI model (stays in env var) — good security design. Covers full Mailgun API surface. Official Mailgun maintenance, Apache-2.0.

Best for

Clients managing their own transactional email infrastructure who want AI to analyze deliverability, manage suppressions, and automate email operations.

Works in

Claude Code Claude Cowork Claude Chat

Source

https://github.com/mailgun/mailgun-mcp-server

By Mailgun (Sinch)

How to Get It

Option 1: Claude Desktop AppOpen the Customize panel in the sidebar → browse connectors → search and add. Works in Claude Code, Claude Cowork, and Claude Chat.

Option 2: Paste into Claude CodeCopy the command below and paste it into a Claude Code conversation. Claude will run it for you.

Command

npx -y @mailgun/mcp-server (add to your MCP client config with MAILGUN_API_KEY env var; in Claude Code use 'claude mcp add' or edit ~/.claude.json)

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

First thing to try

Once it’s connected, paste this into Claude:

Help me check my email delivery success rates for the past month

PrerequisitesNode.js v20.12 or higher; Mailgun account and API keyCostFree

Trust Signals Auto-scanned

Stars57Contributors6Last updated2026-07-24LicenseApache-2.0 (OK for commercial use)Known CVEsNone foundSources: GitHub Advisory Database + OSV.dev · Scanned 2026-08-15 · scanner vattempted-no-data

Data & Access

Data processingPrompts sent to Anthropic API. Enterprise/Team plans exclude training.Connects toMailgun (Sinch) servers (official integration)

Community Pulse Growing

Discussed on Reddit

We published detailed comparison pages against SendGrid, Mailgun, ImprovMX, Clou — Reddit · 1 pts

1 mentions across 1 sources

Reviewer notes

Auto-scanned review. These are observations, not a security certification.

catalog_hygiene stale-eval refresh: Scored from trust signals (evidence-eval-v1): 56 GitHub stars; 3 contributors; last commit 39d ago; license Apache-2.0.

Things to check

Requires valid Mailgun API credentials and account; operations are subject to Mailgun API rate limits and region restrictions. Some advanced features (e.g., SMTP credentials rotation) may still require dashboard access.

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation Scores

Evaluation

Ease of Use

3/5

Versatility

3/5

Reliability

4/5

Security

3/5

Overall score3.25 / 5.00 UsableEvaluatedJul 2026

catalog_hygiene stale-eval refresh: Scored from trust signals (evidence-eval-v1): 56 GitHub stars; 3 contributors; last commit 39d ago; license Apache-2.0.

← Back to the Claude Observatory