Maileroo MCP. Manage deliverability metrics & sending status.
Gemini Works with every AI agent you already use
…and any MCP-compatible client
Just plug in your AI agents and start using Vinkius.
Maileroo connects your AI agent to an SMTP relay and API for transactional email. It lets you send emails, verify recipient addresses before sending, and track delivery status right from conversation.
Use it when reliable inbox placement and scalable email operations matter.
What your AI agents can do
Get domain details
Gets technical details for a specific domain name you need to check.
List sending activity
Lists logs of your recent sending activity, including status and timestamps.
List sending domains
Retrieves a list of all the domains currently authorized for sending emails from your account.
Sends an email using a specific template and recipient list.
Retrieves technical information about any specified sending or receiving domain.
Lists all the webhook endpoints currently set up on your Maileroo account.
Retrieves a list of email templates you have created and can use for sending.
Provides a log of your most recently sent emails, including status and timing.
Retrieves a list of all the domains authorized for sending email from your account.
Ask AI about this MCP
Supported MCP Clients
OAuth 2.0 Compatible Gemini Waiting for input…
Maileroo MCP Server: 6 Tools for Email Ops
Use these tools to create, verify, and track every aspect of your transactional email flow—from template listing to final delivery status.
Make your AI actually useful.
Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Maileroo on Vinkius019dd11cget domain details
Gets technical details for a specific domain name you need to check.
019dd11clist sending activity
Lists logs of your recent sending activity, including status and timestamps.
019dd11clist sending domains
Retrieves a list of all the domains currently authorized for sending emails from your account.
019dd11clist email templates
Retrieves a list of email templates you have created and can use to build messages.
019dd11clist configured webhooks
Lists all the webhook endpoints that are set up on your Maileroo account.
019dd11csend transactional email
Sends an actual email to recipients using a specified template and subject line.
Choose How to Get Started
Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.
Build Your Own
Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.
- Import from OpenAPI, Swagger, or YAML specs
- Create Agent Skills with progressive disclosure
- Deploy to edge with MCPFusion framework
- Built in DLP, auth, and compliance on every call
- Real time usage dashboard and cost metering
- Publish to catalog or keep private
Make Your AI Do More
Start with Maileroo, then connect any of our 5,000+ other servers whenever your AI needs more. One click, no limits.
- Use this MCP plus 5,000+ others, all in one place
- Add new capabilities to your AI anytime you want
- Every connection is secured and compliant automatically
- Track usage and costs across all your servers
- Works with Claude, ChatGPT, Cursor, and more
- New servers added to the catalog every week
Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Maileroo. 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.
VINKIUS INFRASTRUCTURE
Cloud Hosted
Managed infra
V8 Isolated
Sandboxed per request
Zero-Trust Proxy
No stored credentials
DLP Enforced
Policy on every call
GDPR Compliant
EU data residency
Token Compression
~60% cost reduction
Works with Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This server provides 6 capabilities that interface natively with Claude, ChatGPT, Cursor, and any MCP client. No middleware. No custom integration required.
Email operations today feel like checking three different dashboards just to see if one message actually got read.
Right now, if a user signs up and you send them a welcome email, you have to check the main logging dashboard for success. Then, if it failed, you might jump to another section to check if the recipient's domain is valid or if your own sending domain hit a temporary block. It’s slow, manual cross-referencing, and you spend time piecing together a simple status report.
With this MCP server, that entire process happens in one chat thread. You ask for the welcome email to be sent, and the agent handles everything: it validates the domain using `get_domain_details`, checks if your template exists via `list_email_templates`, sends the message with `send_transactional_email`, and reports back the final status, all automatically.
Maileroo MCP Server: Send emails that land in the inbox.
Before this server, developers often had to write complex code just to check domain health or manually manage template IDs. If a simple API call failed, figuring out if it was a bad address, an invalid template ID, or a temporary network issue meant writing pages of error-handling logic.
Now, the agent handles that complexity. You tell your client: 'Send the welcome email to John.' The server figures out the correct domain details, uses the right template, and executes the send—all while keeping you focused on product logic, not email plumbing.
What you can do with this MCP connector
You gotta connect your AI agent right here to Maileroo. This server gives your client access to an SMTP relay and a full API, letting you run all your transactional email stuff straight from the chat window. Use this if reliable inbox placement or massive-scale sending operations are what's keeping you up at night.
When you use this setup, your agent handles everything—from verifying addresses before they even leave your system to tracking exactly where those emails land after they go out. You get real visibility into the entire email lifecycle without leaving your conversation pane.
Your client can send_transactional_email, which sends an actual message using a template you've already set up and a specific subject line. This is how you push out welcome sequences, password resets, or anything else that needs to hit the inbox fast and clean.
Before sending anything, your agent can check domain details with get_domain_details. You feed it any domain name—sending or receiving—and it spits out all the technical specs you need to know about it. It's a quick way to make sure the handshake works.
If you wanna see what templates you've cooked up, run list_email_templates. This pulls up every email template you’ve created and are ready to drop into a message.
To keep track of where your mail is going, you can check recent sending activity using list_sending_activity. It gives you logs of everything you've sent out recently—the status codes, the timestamps, the whole deal. You see if it went through or where it got stuck.
You also need to know what domains are legit for sending. Run list_sending_domains and it fetches a list of every domain currently authorized on your Maileroo account. If you're trying to send from something new, you gotta make sure the domain shows up here first.
Want to see all the endpoints set up? Use list_configured_webhooks. This lists every single webhook URL that’s registered on your Maileroo account, so you know exactly what outside services are listening for those notifications. It's crucial housekeeping stuff.
When everything's running right, your agent can combine these tools: it can use list_email_templates to grab a clean template name, then run send_transactional_email to dispatch the message, and immediately follow up by checking the results with list_sending_activity. This means you're sending, tracking, and confirming all in one shot. You don't have to jump between five different dashboards; your AI agent handles it right here.
019dd11d-0ac1-73e0-841c-77e902033cba 
How Maileroo MCP Works
- 1 Subscribe to the Maileroo server and input your unique API key.
- 2 Your AI agent calls one of the exposed tools, like
send_transactional_email, with necessary parameters (e.g., recipient list, template ID). - 3 Maileroo processes the request, sends the email via its relays, and returns a status object detailing success, failure, or delivery metrics.
The bottom line is: You use your agent to tell it what needs sending; the server handles the relaying, tracking, and reporting back the results.
Who Is Maileroo MCP For?
This is for backend developers who need to integrate reliable email into a product flow. It's also critical for Ops Engineers who track deliverability metrics—you know your emails aren't just being sent; they're hitting the inbox, and you want proof of it.
Uses send_transactional_email to trigger user signups, password resets, or notifications from code execution.
Runs list_sending_activity and checks bounce reports after a campaign to ensure mailing health and compliance.
Uses the server's tools to verify email addresses in new user onboarding flows, ensuring the initial communication works perfectly.
What Changes When You Connect
- Send emails reliably every time. The
send_transactional_emailtool uses an SMTP relay built for scale, ensuring your messages don't get lost in the spam folder. - Stop guessing about email addresses. Use validation tools to check if a recipient is valid and deliverable before you write the message. This cuts down on bounces immediately.
- Full visibility into sending health.
list_sending_activitygives you immediate access to logs, allowing your agent to report delivery rates and average send times instantly. - Manage branding without leaving chat. The
list_email_templatestool lets your agent confirm which templates are available so you can trigger a consistent message every time. - Audit your setup quickly. You don't need to jump through three different dashboards; tools like
get_domain_detailsandlist_sending_domainsgive you the facts right where you work.
Real-World Use Cases
User signs up, but we must confirm email validity first.
A new user provides an email. Instead of just sending a welcome message, your agent first runs get_domain_details to check the domain's health. If it passes, the agent then uses send_transactional_email with the 'welcome' template. Problem solved: we know the address is good and the user got their confirmation.
Campaign launch needs immediate performance tracking.
After sending a large batch of password resets, an ops engineer asks for a report. The agent runs list_sending_activity and summarizes the results: 97% delivered, 2.2% bounced. This gives actionable metrics without logging into the web dashboard.
We are updating our email branding and need to audit templates.
A product team member wants to know what templates exist for legal updates. The agent executes list_email_templates and provides a list of available IDs. They can then confirm the correct template ID before running send_transactional_email.
Need to verify domains for a new partner integration.
A developer needs to ensure their partner's domain is ready for sending. The agent uses get_domain_details on the partner's domain, validating MX records and other necessary info before writing any code that relies on that connection.
The Tradeoffs
Assuming deliverability
Just sending a welcome email and assuming it worked. You don't know if the recipient domain is flagged or if your own sender domain has issues.
→
Always check first. Use get_domain_details on both the senders and receivers to confirm technical readiness, then use send_transactional_email. This two-step process gives you assurance.
Debugging failure by guessing
The email failed, so I check the logs manually for a single error code. The problem might be related to overall sending volume or template expiration.
→
Don't just look at one send. Run list_sending_activity to see patterns in failure times and use list_configured_webhooks to ensure your system is ready for status updates.
Ignoring domain management
Sending emails from a generic account name without confirming the sending domains are active or properly configured.
→
Before any send, run list_sending_domains to confirm your system is authorized. If you need details on one specific sender, use get_domain_details.
When It Fits, When It Doesn't
Use this server if the success of an action depends entirely on reliable email delivery and detailed metrics. Specifically, if you need to validate addresses before sending (using validation tools) or if tracking bounce rates is a core metric for your product flow. It's perfect for onboarding flows and automated notifications.
Don’t use it if all you need is simple bulk logging without care for inbox placement—a basic SMTP library might suffice, but you lose the critical features like address validation and detailed failure/bounce reporting. If you only need to list templates, just use list_email_templates; don't try to send an email until you confirm the template ID first.
In short: Use Maileroo when deliverability is a feature, not an afterthought.
Common Questions About Maileroo MCP
How do I check if an email address is good before running `send_transactional_email`? +
You run validation first. Use the underlying mechanisms to verify addresses and ensure they are deliverable. This prevents failed sends and improves your overall domain reputation.
What tools do I use for tracking delivery metrics with Maileroo MCP Server? +
For logs, run list_sending_activity. For general health checks, you can check the status by listing recent sending activity and reviewing bounce/complaint data.
Can I use the `get_domain_details` tool for anything other than validation? +
You can use it to pull technical information on any domain. This is useful if you're integrating with a partner and need to confirm their MX records or general domain setup.
Does `send_transactional_email` require me to know the template ID? +
Yes, it does. You should first run list_email_templates to get a list of available templates and confirm the correct ID before attempting to send.
What happens if I need to check my credentials or API access before running `send_transactional_email`? +
You must ensure your Maileroo API key is active and correctly configured in your client. If sending fails, the error message points directly to an authentication issue. Always verify the key against your account settings first.
How does `list_sending_domains` help me manage my overall delivery health? +
It shows every domain you're currently using for sending emails. You can use this list to check if any domains are flagged, retired, or need updated authentication credentials before attempting a send.
If I run `send_transactional_email` and receive multiple hard bounces, what should I do next? +
Hard bounces mean the email address doesn't exist. The system handles this by automatically adding the failed addresses to your suppression list. Never try to resend to an address that has bounced more than once.
Can I use `list_configured_webhooks` to automate my delivery monitoring outside of a chat client? +
Yes, listing webhooks shows you the endpoints where Maileroo sends real-time updates. You can connect these URLs to your own internal systems for custom logging or automated alerts.
Can I send transactional emails and verify addresses? +
Yes. Send emails with templates and verify addresses for deliverability before sending.
How does Maileroo authentication work? +
Maileroo uses a custom X-API-Key header against api.maileroo.com/v1.
Can I track bounces and delivery rates? +
Yes. Monitor bounce rates, complaints, suppressions, and overall delivery metrics.
Use it with your favorite AI tools
Connect this server to Cursor, Claude, VS Code, and more.