Postmark MCP. Diagnose bounces, send templates, check delivery stats—all from chat.

Your AI client handles every outbound comms task, so you don't gotta open a dashboard or copy-paste anything. This server gives your agent direct access to Postmark—you can send emails, debug bounce failures down to the SMTP level, track total delivery metrics, and even manage all your templates, all from one chat session.

Dispatching Emails

When you need to blast out messages, your AI client uses dedicated tools. If it's a quick shot in the dark—like a simple plain text or basic HTML notice—it hits send_email. But if you gotta send something structured that needs to look right every time (think password resets or invoices), you use send_with_template with a specific template ID.

This guarantees consistent formatting and makes sure all the necessary variables get populated correctly.

Diagnosing Failures & Bounces

If an email bounces, you don't just wanna know that it bounced; you wanna know why. The client first runs list_bounces to give a summary count and category of recent failures. If that summary isn't enough, the agent pulls the raw data using get_bounce_logs. This gives you the full SMTP log for that specific failure event, letting you pinpoint rejection codes—whether it was a DNS timeout or something else dirty.

You can also check out your spam risk by running list_spam_complaints to see what people are complaining about against your sending domain.

Monitoring Sending Health

Need to know if your mailing efforts are working? The agent pulls operational data with get_delivery_stats. This single call gives you comprehensive metrics, like open rates and the total bytes sent across your server history. You can also check out the core setup anytime by running get_server_config to display the active configuration details for your Postmark instance.

Managing Templates & Settings

Your AI client lets you manage system assets without touching a settings page. Want to see what templates you have? Use list_templates. Need to clean house and delete an old template? You run delete_template with the ID. If you gotta change core details, like updating the sender name or other server specifics, you use update_server_config.

All these tools keep your outbound communication workflow contained right here in the chat.

Quick Reference of What It Does

• Send Messages: You can send plain text/HTML using send_email, or guarantee structure with send_with_template.
• Check Bounces: Get a quick count via list_bounces, then drill down to the raw rejection codes using get_bounce_logs.
• Track Success: Pull operational metrics like open rates and total bytes sent by running get_delivery_stats.
• Audit Spam & Assets: See recent complaints with list_spam_complaints, list existing templates with list_templates, or remove old ones using delete_template.
• Control Settings: Read your current setup details with get_server_config, and change core settings like the sender name by running update_server_config.