# Postmark MCP for AI Agents AI Agent Connect

> Postmark MCP lets your AI agent handle transactional emails, track bounces, and manage templates directly from your chat. It gives your agent the ability to pull SMTP logs, check delivery stats, and update account configurations without you having to toggle between tabs or copy-paste IDs.

## Overview
- **Category:** communication-messaging
- **Price:** Free
- **Endpoint:** https://edge.vinkius.com/vk_preview_KPq8li4s6pf752WqbtPQw1PlrIw8fp2WAbMU1CoL/ai-agent-connect
- **Tags:** transactional-email, smtp-delivery, email-templates, bounce-tracking, email-api, delivery-metrics

## Description

This Postmark MCP connects your AI agent to your mailing infrastructure so you can manage outbound communications through plain conversation. Instead of hunting through a dashboard to see why a specific email failed, you can just ask your agent to pull the logs. It handles the heavy lifting of inspecting SMTP traces, checking your open rates, and managing your HTML templates. You'll find that having your agent handle these tasks makes it much easier to keep your transactional mail healthy. When you connect this through the Vinkius catalog, you get a direct line to your Postmark account where your agent can trigger messages, clean up old templates, or audit your webhook settings on the fly. It turns a series of manual clicks into a few quick questions.

## Tools

### update_server_config
Changes the name of your Postmark configuration. Use this to keep your account details current.

### get_bounce_logs
Retrieves the raw SMTP traces for a specific email bounce. This explains why a message failed to arrive.

### list_spam_complaints
Lists the recent spam complaints against your sending domain. This is vital for monitoring your sender reputation.

### list_templates
Shows all the email templates currently saved in your account. Use this to manage your available layouts.

### delete_template
Permanently removes an email template from your account. This helps keep your mailing assets clean.

### list_bounces
Shows a list of the most recent email bounces. Use this to quickly identify delivery issues.

### get_delivery_stats
Pulls the delivery metrics for your Postmark account. This gives you a clear view of your sending health.

### send_email
Sends a new plain text or HTML email. This is the primary way to dispatch messages via your agent.

### send_with_template
Triggers an email using one of your pre-made Postmark templates. This is best for consistent transactional mail.

### get_server_config
Fetches the current configuration settings for your Postmark account. This helps you audit your active setup.

## Prompt Examples

**Prompt:** 
```
Why did the last few emails fail to deliver?
```

**Response:** 
```
I checked the recent bounces and found 3 failures. Here is the summary:

| Message UUID | Error Code | Reason |
| :--- | :--- | :--- |
| `abc-123` | 550 5.1.1 | User Unknown |
| `xyz-789` | 421 | Service busy |
| `def-456` | 550 5.1.1 | User Unknown |

It looks like two of these are hard bounces because the email addresses do not exist.
```

**Prompt:** 
```
List all my templates and tell me if any are named 'test'.
```

**Response:** 
```
I found 6 active templates in your account. Here are the ones containing 'test':

* **Test_Welcome_Layout** (ID: 9921)
* **QA_Internal_Test** (ID: 4432)

Would you like me to delete either of these?
```

**Prompt:** 
```
Send a test email to my personal address using template 123.
```

**Response:** 
```
Done! I sent a test email using template `123` to `personal_address@example.com`. 

**Status:** Success
**Message UUID:** `msg-998877` 

You can track this message in your Postmark dashboard if needed.
```

## Capabilities

### Send emails and templates
Trigger text or HTML messages instantly through your agent.

### Inspect bounce logs
See the exact SMTP reason for a delivery failure.

### Monitor delivery stats
Get real-time data on open rates and bytes sent.

### Manage templates
List, edit, or delete your existing email layouts.

### Audit configurations
Check webhooks and account settings via chat.

## Use Cases

### Debugging a failed signup
A user says they didn't get a welcome email. You ask the agent to list recent bounces and find the SMTP error using `get_bounce_logs`.

### Cleaning up legacy assets
You need to clear out old marketing mail. You tell the agent to list all templates and delete the ones from 2022 using `delete_template`.

### Verifying webhook triggers
You just set up a new webhook. You use the agent to check your account configuration to make sure it is active via `get_server_config`.

### Rapid layout testing
You need to see how a new HTML layout looks. You tell the agent to send a test using a specific template ID via `send_with_template`.

## Benefits

- Stop hunting for logs. Use `get_bounce_logs` to see exactly why an email failed without leaving your terminal.
- Faster template management. Use `list_templates` and `delete_template` to keep your mailing assets clean.
- Real-time health checks. Pull delivery metrics with `get_delivery_stats` to monitor your sending reputation.
- Quick config updates. Change your account settings using `update_server_config` instead of clicking through menus.
- Instant testing. Use `send_with_template` to verify your HTML layouts are rendering correctly in seconds.

## How It Works

The bottom line is you get direct control over your email infrastructure without leaving your chat window.

1. Subscribe to the Postmark MCP in the Vinkius Marketplace.
2. Provide your Postmark Server Token in your AI client settings.
3. Ask your agent to send a test email or pull recent bounce logs.

## Frequently Asked Questions

**Can I use the Postmark MCP to see why my emails are bouncing?**
Yes, it pulls the raw SMTP logs so you can see the exact reason for a failure. This helps you quickly identify if a bounce is a hard failure or a temporary delivery issue.

**How do I send a test email with this?**
You just tell your agent to send one using a specific template ID or plain text. It will trigger the message immediately through your Postmark account.

**Can I manage my templates with the Postmark MCP?**
You can list all your active templates and delete the ones you no longer need. This helps keep your mailing assets organized without manual dashboard navigation.

**Does the Postmark MCP show my delivery stats?**
Yes, it can pull metrics like open rates and bytes sent for your account. This gives you a clear view of your sending health and performance.

**Can I check my webhook settings?**
You can ask the agent to pull your account configuration to see which webhooks are active. This is great for auditing your current setup.

**Can the AI send emails dynamically using my existing templates?**
Yes. Using `send_with_template`, you merely tell the AI the template ID and the JSON parameters (Template Model). It perfectly injects the data into your Postmark layouts.

**Is it possible to debug a complex email bounce natively inside Claude?**
Absolutely. First command `list_bounces` to find failing message UUIDs. Then ask the agent to run `get_bounce_logs` on that UUID—it will interpret the pure SMTP error code for you naturally.

**Which Postmark token should I use?**
This Connector uses the Postmark Server Token. Each Server in Postmark functions as an isolated environment (e.g. Production Server vs Staging Server).