Vinkius

Postmark MCP for AI Agents. Track bounces and send emails from your chat.

Postmark MCP lets your AI client handle all transactional email tasks. Dispatch plain text or rich HTML emails using stored templates, monitor real-time delivery statistics, and dive into raw SMTP logs to find out exactly why an email bounced. It manages spam complaints, tracks bounces across large volumes, and keeps track of every template layout—all from a single chat window.

Postmark MCP is compatible with Claude Claude
Postmark MCP is compatible with ChatGPT ChatGPT
Postmark MCP is compatible with Cursor Cursor
Postmark MCP is compatible with Gemini Gemini
Postmark MCP is compatible with Windsurf Windsurf
Postmark MCP is compatible with VS Code VS Code
Postmark MCP is compatible with JetBrains JetBrains
Postmark MCP is compatible with Vercel Vercel
See Vinkius in Action

Give Claude and any AI agent real-world access

Send formatted emails

Dispatch both simple text messages and complex HTML emails using pre-approved templates.

Investigate delivery failures

Retrieve specific SMTP logs to pinpoint the exact reason an email was rejected, like a DNS timeout or invalid user format.

Check bounce history

List recent bounces and get high-level metrics on deliverability health across your entire sending volume.

Manage email content

View, list, or delete old templates to keep your mailing architecture clean and up to date.

Audit server settings

Get current operational details for the Postmark account or update specific server configurations as needed.

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AI Agent
Postmark

What AI agents can do with Postmark: 10 Email Management Tools

Use these tools to manage every aspect of email communication—from sending messages using templates to analyzing raw bounces and managing server settings.

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 Postmark MCP

Delete Template

Removes an existing email template from the Postmark account.

Update Server Config

Changes or updates the specified name for your sending server configuration.

Get Bounce Logs

Retrieves detailed SMTP logs showing why a specific email delivery attempt failed.

List Bounces

Provides an overview list of recent emails that bounced for any reason.

Get Delivery Stats

Pulls current operational metrics, including open rates and total bytes sent by the...

Get Server Config

Retrieves the full, current configuration details for your Postmark account.

List Spam Complaints

Lists recent records of emails that were reported as spam by recipients.

List Templates

Retrieves a list of all available email templates stored in the system.

Send Email

Sends an ad-hoc email using either plain text or full HTML content.

Send With Template

Sends a fully formatted, personalized email by mapping data to an existing template...

Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Postmark MCP is compatible with Claude

Claude AI

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 Postmark integration is available immediately — no restart needed.

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 each call
  • Real time usage dashboard and cost metering
  • Publish to catalog or keep private
Start building

Make Your AI Do More

Start with Postmark, then connect any of our 5,200+ other servers whenever your AI needs more. One click, no limits.

  • Use this MCP plus 5,200+ others, all in one place
  • Add new capabilities to your AI anytime you want
  • Connections are secured and governed automatically
  • Track usage and costs across all your servers
  • Works with Claude, ChatGPT, Cursor, and more
  • New servers added to the catalog weekly
Postmark MCP server cover

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Postmark. 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 each call

GDPR Compliant

EU data residency

Token Compression

~60% cost reduction

Your data is protected. See how we built it.

The pain of managing failed emails is constant. Solved with Vinkius AI Gateway

Today, when an alert comes in about a bounced email, you're usually forced into a painful routine. You have to copy down a UUID, log into the Postmark dashboard, find the specific trace ID, and then manually scroll through pages of logs trying to decipher if the rejection was due to spam filters or something else. It’s slow, tedious clicking across multiple tabs just to get one answer.

With this MCP, that manual detective work disappears. You simply ask your agent about the issue. The system handles the complex logging calls and returns a plain English explanation: 'The upstream MTA rejected it with code 550.' It gives you the answer fast, keeping your focus on fixing the problem, not finding the data.

Postmark MCP delivers precise control over email sending.

You no longer have to manually list templates or check server configurations. The agent can run 'list_templates' to give you a full inventory, and then execute 'update_server_config' if the system name changes—all without leaving your chat window.

It means your development cycle speeds up drastically. You get immediate access to audit tools like 'get_delivery_stats' or 'list_spam_complaints,' giving you complete visibility into communications health instantly.

What your AI can actually do with this

This MCP lets your AI client manage Postmark directly via conversational prompts. You don't need to log into the dashboard or copy-paste any IDs anymore. Need to send a welcome email? Just ask, and it uses templates to dispatch the message. If something goes wrong—say, an email bounces—it pulls detailed SMTP traces so you can see exactly what the recipient server rejected.

It also lets you check current delivery stats or list recent spam complaints without leaving your chat window. Everything is available through Vinkius, meaning you connect once and gain access to this powerful communication suite right alongside other services you use.

Built · Hosted · Managed by Vinkius Postmark MCP - Send Emails & Track Delivery
Server ID 019d75f8-a4f5-73bc-aa9a-b4fab7ee9b5c
Vinkius Inspector
Compliance Grade A+
Score 100/100
Vinkius Inspector Badge — Score 100/100

Questions you might have

How do I check if an email failed using Postmark MCP? +

You use the get_bounce_logs tool. This pulls detailed SMTP traces, telling you exactly what rejection code was returned (like 550) and why the recipient server rejected it.

Can I send a personalized email with Postmark MCP? +

Yes, use send_with_template. This tool allows you to map specific data points into your existing HTML templates so every message looks professional and customized.

What is the difference between sending an email and using a template with Postmark MCP? +

Sending a plain send_email is for quick, simple text messages. Using send_with_template ensures your message uses rich HTML formatting and variable mapping defined in a stored layout.

Do I need to run 'list_bounces' every time an email fails? +

No, you can ask the agent to list recent bounces first using list_bounces for an overview. Then, if you need deep detail on one specific bounce, use get_bounce_logs.

How do I keep my templates organized with Postmark MCP? +

You can view all your assets using list_templates. When a template is retired, you should run delete_template to keep the system clean and reduce clutter.