How do I connect my Postmark account?

You need to provide your Postmark Server Token and an optional Account Token in the Vinkius settings after subscribing to the MCP.

Which AI clients can I use with this MCP?

You can use any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.

Can I send bulk emails through the agent?

Yes, the MCP includes a capability specifically for sending emails in batches.

Does this MCP handle email templates?

Yes, you can list, get details for, and manage your Postmark email templates through your agent.

How can I check if my emails are bouncing?

You can ask your agent to list recent bounces or check delivery statistics to monitor your account health.

Can I send a transactional email using my AI agent?

Yes! Use the send_email action. Provide the sender and recipient details along with your subject and message body.

An astronaut overseeing a futuristic data hub

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Connect Postmark Extended to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Manage your transactional delivery through natural conversation.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 11 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 11 available through Postmark.

01
List account servers
This capability retrieves a list of all Postmark servers associated with your account.
02
List email templates
Use this to see all the email templates currently stored in your Postmark account.
03
List outbound messages
This capability pulls a list of your recently sent outbound messages.
04
Send email
This capability sends a single transactional email to a recipient.

Capability set02 / 03

05-08

4 capabilities in this set.

Part of 11 available through Postmark.

05
Get template
Use this to pull the specific details and configuration of an existing email template.
06
List bounces
This capability provides a list of recent email bounces to help you track delivery failures.
07
List domains
This capability lists all the sending domains you have verified in Postmark.
08
Get delivery stats
Use this to pull general email delivery statistics.

Capability set03 / 03

09-11

3 capabilities in this set.

Part of 11 available through Postmark.

09
Get outbound stats
This capability retrieves specific outbound delivery statistics for your messages.
10
Get server info
This capability fetches the configuration details for a specific Postmark server.
11
Send batch email
Use this to send multiple emails at once in a single batch operation.

Real work

What teams actually run

Automated Testing

Trigger specific transactional emails during a development cycle to verify template rendering.

Deliverability Audits

Ask your agent to analyze recent bounces to find problematic domains or invalid addresses.

Template Orchestration

Retrieve or verify template details to ensure the right message is being sent to users.

Real-time Monitoring

Check outbound delivery stats to confirm that critical system notifications are going through.

Automate a task

Put Postmark to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Postmark works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Postmark to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

919ms average. Fast in production.

Postmark is checked daily against the live service.

Daily averagePeak 1162ms

Oct 3Today

Fastest day: 650ms
Slowest day: 1162ms
14-day trend: Stable+4%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 11 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Postmark, so you can see the experience inside your AI.

It does not authenticate your account with Postmark. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Postmark Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Postmark capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "postmark-extended-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Postmark in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Postmark owners hand off.

This MCP is built for developers and operations teams who need to manage high-volume transactional email without leaving their IDE or chat interface.

01
Backend Developers
They use the agent to trigger test emails or check template IDs while writing code.
02
DevOps Engineers
They hand off bounce tracking and domain verification tasks to the AI.
03
Product Managers
They use the agent to quickly check delivery stats and engagement metrics.

FAQ

Questions Postmark owners ask.

01
How do I connect my Postmark account?
You need to provide your Postmark Server Token and an optional Account Token in the Vinkius settings after subscribing to the MCP.
02
Which AI clients can I use with this MCP?
You can use any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.
03
Can I send bulk emails through the agent?
Yes, the MCP includes a capability specifically for sending emails in batches.
04
Does this MCP handle email templates?
Yes, you can list, get details for, and manage your Postmark email templates through your agent.
05
How can I check if my emails are bouncing?
You can ask your agent to list recent bounces or check delivery statistics to monitor your account health.
06
Can I send a transactional email using my AI agent?
Yes! Use the send_email action. Provide the sender and recipient details along with your subject and message body.

Explore

More in Developer Tools

Connect Postmark to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

List account servers

List email templates

List outbound messages

Send email

05-08

Get template

List bounces

List domains

Get delivery stats

09-11

Get outbound stats

Get server info

Send batch email

What teams actually run

Automated Testing

Deliverability Audits

Template Orchestration

Real-time Monitoring

Building your own app? The connector is yours to use.

Postmark Connector

Claude Desktop

Backend Developers

DevOps Engineers

Product Managers

How do I connect my Postmark account?

Which AI clients can I use with this MCP?

Can I send bulk emails through the agent?

Does this MCP handle email templates?

How can I check if my emails are bouncing?

Can I send a transactional email using my AI agent?

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