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Vinkius

Postmark Connector for AI agents.

11 live capabilities

Manage transactional emails and monitor delivery health from your chat interface.

Live agent request Postmark / Connector

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AI Agent

Why people use Postmark

Postmark for Transactional Email Debugging

This Connector changes that. You can stay in your IDE and just ask your agent to find the specific bounce for a user's email address. It pulls the data, tells you why it failed, and lets you verify the template layout in the same window.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
  • Visual Studio Code
  • Windsurf

What Vinkius changes

You get a direct line to your email infrastructure from your chat window.

Use it from Claude, ChatGPT, Cursor or another AI client you already have.

One account · 5,900+ Connectors

  1. Real-world use case 01

    Debugging a broken signup flow

    An engineer asks the agent to find a specific bounce for a user who didn't receive a verification link.

  2. Real-world use case 02

    Verifying a Welcome email

    A product manager asks the agent to pull the HTML body of a template to check for broken links.

  3. Real-world use case 03

    Checking daily delivery stats

    A system admin asks for an overview of outbound messages to see if there's a spike in errors.

Complete set · 11capabilities

The complete Postmark capability set.

These are the exact actions your AI can choose when you ask it to work with Postmark.

Capability set01 / 03

01—04

4 capabilities in this set.

Part of 11 available through Postmark.

  1. 01 Capability

    Get delivery stats

    Get email delivery statistics

  2. 02 Capability

    Get outbound stats

    Get outbound delivery stats

  3. 03 Capability

    Get template

    Retrieve the raw body and details of a specific email template. Use this to verify your HTML and variables.

  4. 04 Capability

    List bounces

    List recent email bounces

Capability set02 / 03

05—08

4 capabilities in this set.

Part of 11 available through Postmark.

  1. 05 Capability

    List domains

    List all verified sending domains

  2. 06 Capability

    List outbound messages

    List sent messages

  3. 07 Capability

    List account servers

    List account servers

  4. 08 Capability

    List email templates

    List email templates

Capability set03 / 03

09—11

3 capabilities in this set.

Part of 11 available through Postmark.

  1. 09 Capability

    Send batch email

    Send emails in batch

  2. 10 Capability

    Send email

    Dispatch a transactional email using a subject line and either plain text or HTML. Use this for one-off messages.

  3. 11 Capability

    Get server info

    Get Postmark server configuration

Set up in minutes

One URL. Then ask Postmark to work.

Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Postmark from the conversation.

Choose your client

Live preview
Advanced clients IDE · CLI

Claude · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP
https://edge.vinkius.com/vk_preview_NXSEhZled0Vu4GkrCevS3cBuGGJbkuDDQGembvq6/mcp
  1. Step 01

    Open Connectors

    In Claude Web or Claude Desktop, open Settings and choose Connectors.

  2. Step 02

    Add the URL

    Choose Add custom connector, name it Postmark, and paste the URL above.

  3. Step 03

    Turn it on in chat

    Select +, open Connectors, and enable Postmark for the conversation.

Where the request belongs

Work Postmark can move forward.

Built around the request

This is for the software engineer who's tired of clicking through dashboards at 2am to find out why a production email failed, or the product manager who needs to verify that a new 'Welcome' email looks correct without asking a developer to send a manual test.

01

Software Engineer

Debugging application email flows by checking bounce reasons and sending test messages directly from the terminal.

02

Product Manager

Verifying visual layouts of critical system emails and monitoring high-level delivery health metrics.

03

System Admin

Querying delivery analytics and tracing email endpoints for operational overviews.

Build the capability set

Add more capabilities.

Each Connector adds new actions and data without changing how you work.

Browse Connectors
Postmark logo
01 11 capabilities

Postmark

Automate transactional email delivery via Postmark. manage servers, templates, and bounces directly from any AI agent.

View Connector
SendGrid logo
02 12 capabilities

SendGrid

Deliver transactional and marketing emails at massive scale with industry-leading deliverability and real-time analytics.

View Connector
UniOne logo
03 12 capabilities

UniOne

Send transactional and bulk emails with high deliverability, detailed analytics, and infrastructure that handles millions of messages.

View Connector
SparkPost logo
04 10 capabilities

SparkPost

Bring your SparkPost email delivery platform into your AI. Manage templates, send campaigns, and audit deliverability directly from your editor.

View Connector
Mailjet logo
05 12 capabilities

Mailjet

Deliver emails at scale with collaborative template editing, real-time monitoring, and deliverability analytics in one platform.

View Connector

Bring your own AI

Change the model, client or framework. Keep Postmark connected.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
  • VS Code
  • Windsurf
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  • Zed
  • Continue
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  • Roo Code
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  • CrewAI
  • Vercel AI SDK

Before you connect

Questions about Postmark.

The practical details behind the request, access and result.

What can I do with the Postmark MCP?

You can send emails, check bounce logs, and view your delivery analytics from your AI client.

How do I check why an email bounced?

You can ask your agent to search for bounces using specific filters like the recipient's email or a message ID to see the exact reason for failure.

Can I see the HTML for my Postmark templates?

Yes, your agent can fetch the raw body of any specific template so you can verify the layout and variables.

Can I use this to send test emails?

You can send both raw HTML emails and messages from your pre-configured templates directly through your AI client.

Does this work with Cursor or Claude?

Yes, this Connector works with any MCP-compatible client including Claude, Cursor, and Windsurf.

How do I get started with Postmark MCP?

You just need your Postmark Server Token. Once you connect it through Vinkius, your agent can start managing your emails.

Can I use this server to actually send operational emails from my account?

Yes! The send_email and send_email_with_template capabilities will dispatch active live emails using your Postmark server configuration.

How can I debug a specific user reporting that they didn't receive an email?

You can ask the agent to execute search_outbound_messages or search_bounces using their exact email address. The agent will fetch the delivery log and status codes.

Do I need the Account Token or the Server Token to use this?

You only need the Server Token. Postmark divides workflows by servers (environments). Supplying the server token isolates this specific operational environment perfectly.

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.

One connection away

Give your agent a direct line to Postmark.

Connect Postmark once. Keep it beside 5,900+ managed Connectors when the next task needs more.

Explore every Connector No credit card required · Free tier available