MCP For Claude Marketplace
Postmark

Postmark MCP Connector for Claude

A+

Equip your AI to send emails, monitor delivery stats, track bounces, and manage Postmark templates directly from your chat.

10 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

Connect your Postmark server safely to any AI agent, granting it the ability to dispatch transactional emails, debug delivery failures, and inspect mailing architectures directly via conversational prompts.

What you can do

  • Send Emails & Templates — Command the AI to dispatch text-based emails or trigger rich HTML messages using pre-existing Postmark templates (send_with_template)
  • Inspect Bounces & Logs — Ask why an email failed. The AI can pull exact SMTP traces (get_bounce_logs) to explain spam rejections or DNS timeouts
  • Monitor Delivery Stats — Retrieve precise operational health data, mapping open rates and physical bytes sent across massive volumes
  • Manage Configurations & Templates — List active webhooks spanning your routing, edit server names, or safely clean up legacy template layouts

How it works

  1. Subscribe to this server
  2. Enter your Postmark Server Token
  3. Start managing outbound communications natively in Claude, Cursor, or your preferred MCP client

Forget logging into dashboards to copy-paste trace IDs. Ask the model to 'find the latest bounce logs' and watch it dissect the 5xx errors for you.

Who is this for?

  • Backend Engineers — quickly check explicit webhook constraints or edit server settings on the fly
  • Support Teams — investigate exact reasons for "hard bounces" mapping physical UUIDs when users complain about missing emails
  • QA Testers — effortlessly trigger test templates and read precise delivery confirmation metrics
transactional-emailsmtp-deliveryemail-templatesbounce-trackingemail-apidelivery-metrics

10 tools expose this connector's capabilities to your AI agent.

delete_template

Delete an email template

update_server_config

Update server name

get_bounce_logs

Get raw SMTP logs for a bounce

list_bounces

List recent email bounces

get_delivery_stats

Get delivery metrics for the server

get_server_config

Get Postmark server configuration

list_spam_complaints

List recent spam complaints

list_templates

List all email templates

send_email

Send a plain text or HTML email

send_with_template

Send an email using a template

See how to talk to your AI agent using Postmark.

Can you check if we had any hard bounces yesterday, and tell me why?

I checked `list_bounces`. You had exactly 2 hard bounces related to the `@test.local` domain. Fetching `get_bounce_logs` for UUID `192...`, the upstream MTA rejected it throwing a `550 5.1.1 User Unknown` SMTP code. The inbox genuinely doesn't exist.

List all active Postmark templates, then delete the one clearly named 'Legacy Promo'.

Listing your templates... Found 5 active. I have identified 'Legacy Promo' mapped to `template_id` 89321. I'm now invoking `delete_template` on 89321. The layout has been completely purged from your Postmark server.

Send a welcome email through Postmark using template ID `10101` to `user@example.com`.

Dispatched gracefully using `send_with_template`. Postmark accepted the request to route template `10101` towards `user@example.com` specifying the sender address `admin@yourdomain.com`. It resolved via message UUID `abc-123`.

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.

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