Bring Transactional Email
to CrewAI
Create your Vinkius account to connect Mailgun (Transactional Email & Domains) to CrewAI and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Mailgun (Transactional Email & Domains) MCP Server?
Connect your Mailgun account to any AI agent and take full control of your transactional email delivery, domain health, and suppression management through natural conversation.
What you can do
- Transactional Messaging — Send high-priority transactional or marketing emails directly from your agent, specifying verified domains and custom text bodies securely
- Domain Health Audit — Retrieve detailed DNS records and state mappings for your domains, including SPF, DKIM, and MX dependencies to ensure deliverability
- Suppression Management — List and audit bounced emails, unsubscribes, and complaints, with the ability to selectively delete suppressions to allow resending
- Analytics & Statistics — Query domain-level analytics to track open rates, click-through rates, and general delivery performance in real-time
- Event Logging — Extract raw chronological event logs (deliveries, opens, drops, bounces) to investigate delivery failures or anomalous traffic spikes
- Email Validation — Use the Mailgun Validation API to check if an email address is deliverable and valid before initiating a send request
- Template Discovery — List and retrieve stored HTML Handlebars templates associated with your domains for consistent professional messaging
How it works
- Subscribe to this server
- Enter your Mailgun Private API Key
- Start managing your email infrastructure from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Software Developers — test transactional email flows and validate domain settings through natural conversation without manual API tools
- DevOps & SREs — monitor domain deliverability and investigate delivery logs directly from your workspace for rapid incident response
- Growth Engineers — audit campaign stats and manage suppression lists across multiple Mailgun domains efficiently
Built-in capabilities (10)
Irreversible action. Delete a bounced email from the suppression list
Get domain details and DNS records for a Mailgun domain
Get analytics and stats for a Mailgun domain
List email HTML templates for a Mailgun domain
Useful to detect out of bounds sending or inactive audiences. Check bounced email logs and suppression list for a domain
List all configured domains on the Mailgun account
List raw event logs (deliveries, opens, drop, bounces) for a domain
List unsubscribed emails for a Mailgun domain
Send an email using Mailgun
Validate an email address via the Mailgun Email Validation API
Why CrewAI?
When paired with CrewAI, Mailgun (Transactional Email & Domains) becomes a first-class tool in your multi-agent workflows. Each agent in the crew can call Mailgun (Transactional Email & Domains) tools autonomously, one agent queries data, another analyzes results, a third compiles reports, all orchestrated through Vinkius with zero configuration overhead.
- —
Multi-agent collaboration lets you decompose complex workflows into specialized roles, one agent researches, another analyzes, a third generates reports, each with access to MCP tools
- —
CrewAI's native MCP integration requires zero adapter code: pass Vinkius Edge URL directly in the
mcpsparameter and agents auto-discover every available tool at runtime - —
Built-in task delegation and shared memory mean agents can pass context between steps without manual state management, enabling multi-hop reasoning across tool calls
- —
Sequential and hierarchical crew patterns map naturally to real-world workflows: enumerate subdomains → analyze DNS history → check WHOIS records → compile findings into actionable reports
Mailgun (Transactional Email & Domains) in CrewAI
Why run Mailgun (Transactional Email & Domains) with Vinkius?
The Mailgun (Transactional Email & Domains) connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.
* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Mailgun (Transactional Email & Domains) using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Mailgun (Transactional Email & Domains) and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Mailgun (Transactional Email & Domains) to CrewAI through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Mailgun (Transactional Email & Domains) for CrewAI
Every request between CrewAI and Mailgun (Transactional Email & Domains) is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
Can I check if my domain's DNS records are correctly configured?
Yes. Use the get_domain tool by providing your verified domain name. Your agent will retrieve the status of SPF, DKIM, and MX records, helping you identify if any DNS dependencies are missing or misconfigured.
How do I see which emails have recently bounced from my domain?
The list_bounces tool allows your agent to extract the suppression logs for a specific domain. You'll see the email addresses that failed to deliver, providing insights into audience health or sending boundaries.
Can my agent validate an email address before I send a message?
Absolutely. Use the validate_email tool to check if an address is valid, deliverable, and doesn't belong to a disposable service. This is perfect for ensuring high-quality data before triggering outbound sends.
How does CrewAI discover and connect to MCP tools?
CrewAI connects to MCP servers lazily. when the crew starts, each agent resolves its MCP URLs and fetches the tool catalog via the standard tools/list method. This means tools are always fresh and reflect the server's current capabilities. No tool schemas need to be hardcoded.
Can different agents in the same crew use different MCP servers?
Yes. Each agent has its own mcps list, so you can assign specific servers to specific roles. For example, a reconnaissance agent might use a domain intelligence server while an analysis agent uses a vulnerability database server.
What happens when an MCP tool call fails during a crew run?
CrewAI wraps tool failures as context for the agent. The LLM receives the error message and can decide to retry with different parameters, fall back to a different tool, or mark the task as partially complete. This resilience is critical for production workflows.
Can CrewAI agents call multiple MCP tools in parallel?
CrewAI agents execute tool calls sequentially within a single reasoning step. However, you can run multiple agents in parallel using process=Process.parallel, each calling different MCP tools concurrently. This is ideal for workflows where separate data sources need to be queried simultaneously.
Can I run CrewAI crews on a schedule (cron)?
Yes. CrewAI crews are standard Python scripts, so you can invoke them via cron, Airflow, Celery, or any task scheduler. The crew.kickoff() method runs synchronously by default, making it straightforward to integrate into existing pipelines.
MCP tools not discovered
Ensure the Edge URL is correct. CrewAI connects lazily when the crew starts. check console output.
Agent not using tools
Make the task description specific. Instead of "do something", say "Use the available tools to list contacts".
Timeout errors
CrewAI has a 10s connection timeout by default. Ensure your network can reach the Edge URL.
Rate limiting or 429 errors
Vinkius enforces per-token rate limits. Check your subscription tier and request quota in the dashboard. Upgrade if you need higher throughput.
Explore More MCP Servers
View all →
Pinata Cloud
12 toolsAutomate IPFS pinning and decentralized storage via Pinata — manage files, JSON, and groups directly with AI.
PDF.co
12 toolsParse, generate, merge, and convert PDF documents programmatically with an API that handles complex document processing tasks.
Mollie
7 toolsAccept online payments across Europe with a payment gateway that supports iDEAL, credit cards, PayPal, and local methods seamlessly.
Vinsight
12 toolsManage wine, beer, and spirits production — inventory, sales orders, batches, vessels, and lab results for your Vinsight operation through natural conversation.