Postmark Connector for AI agents.

72 live capabilities

Send transactional emails and manage dynamic templates through high-deliverability infrastructure.

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AI Agent

Why people use Postmark

Postmark for Transactional Email Delivery

This Connector puts that entire workflow into your AI client. You can tell your agent to send a test email, validate a new template, or check your bounce stats using natural language. You get to stay in your editor while your agent handles the heavy lifting of your email infrastructure.

What Vinkius changes

You get to manage your entire email delivery pipeline through natural language instead of a web dashboard.

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

One account · 5,900+ Connectors

Real-world use case 01

Testing new signup flows

A developer needs to see if their new registration email looks right.
Real-world use case 02

Updating marketing copy

A marketing manager needs to change a price in a welcome email.
Real-world use case 03

Troubleshooting high bounce rates

A support lead notices a spike in bounces.

Complete set · 72capabilities

The complete Postmark capability set.

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

Capability set01 / 18

01—04

4 capabilities in this set.

Part of 72 available through Postmark.

01 Capability
Get outbound message details
View the full event history for an outbound message. Use this to track a specific user's journey.
02 Capability
Get outbound opens clients stats
See which email clients are opening your messages. This helps you optimize your designs.
03 Capability
Create message stream
Create a new message stream for organizing your email traffic. This helps keep different types of notifications separate.
04 Capability
Create server
Set up a new server within your Postmark account. Use this to organize different types of mail sending.

Capability set02 / 18

05—08

4 capabilities in this set.

Part of 72 available through Postmark.

05 Capability
Create webhook
Set up a webhook to receive automated updates on email events. This connects your email data to other apps.
06 Capability
Get delivery stats
View the overall delivery and bounce statistics. This gives you a high-level view of your health.
07 Capability
Get outbound bounces stats
Check the bounce counts for your outbound messages. Use this to identify problematic addresses.
08 Capability
List message streams
See all message streams in your account. Use this to organize your email categories.

Capability set03 / 18

09—12

4 capabilities in this set.

Part of 72 available through Postmark.

09 Capability
Request data removal
Request that recipient data be removed for GDPR or CCPA compliance. This automates your privacy requests.
10 Capability
Create sender signature
Add a new sender signature at the account level to verify your identity. This improves your deliverability.
11 Capability
Create suppressions
Add up to 50 suppressed addresses to a specific message stream. This prevents sending to invalid addresses.
12 Capability
Create template
Build a new email template for your transactional messages. This lets you reuse layouts for different emails.

Capability set04 / 18

13—16

4 capabilities in this set.

Part of 72 available through Postmark.

13 Capability
Delete domain
Remove an existing domain from your account settings. Use this to clean up your domain list.
14 Capability
Delete sender signature
Remove a sender signature from your account. Use this when you no longer need a specific signature.
15 Capability
Delete server
Delete a server from your account. This helps keep your account configuration clean.
16 Capability
Delete suppressions
Reactivate suppressed email addresses for a message stream. Use this if a previous bounce was a mistake.

Capability set05 / 18

17—20

4 capabilities in this set.

Part of 72 available through Postmark.

17 Capability
Delete template
Remove a specific email template. This is useful for cleaning up old marketing assets.
18 Capability
Delete webhook
Remove a webhook from a message stream. Use this to stop receiving updates for a specific stream.
19 Capability
Edit current server
Update the configuration of your current server. This is the fastest way to change server settings.
20 Capability
Edit domain
Modify the settings of an existing domain. Use this to update your domain configuration.

Capability set06 / 18

21—24

4 capabilities in this set.

Part of 72 available through Postmark.

21 Capability
Edit message stream
Update the details of a message stream. This allows you to refine how your messages are organized.
22 Capability
Edit sender signature
Modify an existing sender signature. Use this to update your 'from' information.
23 Capability
Edit server
Change settings for an account-level server. This is used for broad configuration changes.
24 Capability
Edit template
Update the content or variables of an existing template. This allows for quick copy changes.

Capability set07 / 18

25—28

4 capabilities in this set.

Part of 72 available through Postmark.

25 Capability
Edit webhook
Update the configuration of an existing webhook. Use this to change where your data is sent.
26 Capability
Get bounce dump
Retrieve the raw SMTP dump for a specific bounce. This is great for deep technical troubleshooting.
27 Capability
Get bounce
Fetch the specific details for a bounced message. Use this to see why a specific email failed.
28 Capability
Get bulk request status
Check the current status of a bulk email request. This helps you monitor large distributions.

Capability set08 / 18

29—32

4 capabilities in this set.

Part of 72 available through Postmark.

29 Capability
Get current server
View the configuration for your current server. Use this to verify your active settings.
30 Capability
Get data removal status
Check the progress of a GDPR or CCPA data removal request. This helps you track compliance tasks.
31 Capability
Get domain
Fetch details for a specific domain in your account. Use this to check your domain status.
32 Capability
Get inbound message details
See the details of an incoming message. Use this to inspect inbound traffic.

Capability set09 / 18

33—36

4 capabilities in this set.

Part of 72 available through Postmark.

33 Capability
Get message stream
View the details of a specific message stream. This helps you check stream configurations.
34 Capability
Get outbound clicks stats
Check the click counts for your outbound messages. This helps you measure engagement.
35 Capability
Get outbound message dump
Get the raw source for a specific outbound message. This is essential for debugging content issues.
36 Capability
Get outbound opens platforms stats
See which platforms are opening your messages. Use this to understand where your users are.

Capability set10 / 18

37—40

4 capabilities in this set.

Part of 72 available through Postmark.

37 Capability
Get outbound opens stats
Check the total open counts for outbound messages. This is your primary engagement metric.
38 Capability
Get outbound sends stats
Check the total sent counts for outbound messages. Use this to verify your volume.
39 Capability
Get outbound spam stats
View the spam complaint counts for your outbound messages. This is critical for your reputation.
40 Capability
Get outbound stats
Get a general overview of your outbound message statistics. This provides a snapshot of your performance.

Capability set11 / 18

41—44

4 capabilities in this set.

Part of 72 available through Postmark.

41 Capability
Get outbound tracked stats
View the count of tracked emails for your outbound messages. Use this to see your reach.
42 Capability
Get sender signature
Fetch the details of a specific sender signature. Use this to verify your 'from' info.
43 Capability
Get server
View the details of an account-level server. Use this to check your account infrastructure.
44 Capability
Get template
Fetch the details of a specific email template. Use this to inspect your existing content.

Capability set12 / 18

45—48

4 capabilities in this set.

Part of 72 available through Postmark.

45 Capability
Get webhook
View the details of a specific webhook. This helps you manage your external integrations.
46 Capability
List domains
See all domains currently in your account. Use this to manage your overall domain list.
47 Capability
List sender signatures
See all sender signatures at the account level. Use this to manage your identity options.
48 Capability
List servers
See all servers in your account. Use this to check your infrastructure layout.

Capability set13 / 18

49—52

4 capabilities in this set.

Part of 72 available through Postmark.

49 Capability
List suppressions
View all suppressed addresses for a message stream. This helps you manage your bounce list.
50 Capability
List templates
See all templates on your current server. This is your primary library of email layouts.
51 Capability
List webhooks
See all webhooks for a specific message stream. Use this to manage your data exports.
52 Capability
Push templates
Move templates from one server to another. This is great for migrating your content.

Capability set14 / 18

53—56

4 capabilities in this set.

Part of 72 available through Postmark.

53 Capability
Resend sender signature
Send a new confirmation email for a sender signature. Use this to re-verify your identity.
54 Capability
Retry inbound message
Re-process a failed inbound message. Use this to ensure you don't miss any incoming data.
55 Capability
Rotate domain dkim
Update the DKIM keys for a specific domain. This is a key step for maintaining deliverability.
56 Capability
Search bounces
Find specific bounces based on your search criteria. Use this to troubleshoot delivery issues.

Capability set15 / 18

57—60

4 capabilities in this set.

Part of 72 available through Postmark.

57 Capability
Search inbound messages
Find received inbound messages using specific filters. Use this to find specific communications.
58 Capability
Search outbound clicks
Find specific click events for your outbound messages. Use this to track user actions.
59 Capability
Search outbound messages
Search through your sent outbound messages. Use this to find specific sent emails.
60 Capability
Search outbound opens
Find specific open events for your outbound messages. Use this to see who is reading your mail.

Capability set16 / 18

61—64

4 capabilities in this set.

Part of 72 available through Postmark.

61 Capability
Unarchive message stream
Restore an archived message stream to active status. Use this to bring back old streams.
62 Capability
Validate template
Check your template syntax for errors before you send it. This helps you catch mistakes before they reach your customers.
63 Capability
Verify domain dkim
Trigger a DKIM verification for a specific domain. Use this to confirm your setup is correct.
64 Capability
Verify domain return path
Trigger a Return-Path verification for a domain. This is another key step for deliverability.

Capability set17 / 18

65—68

4 capabilities in this set.

Part of 72 available through Postmark.

65 Capability
Send batch emails
Send a group of emails via Postmark. This is great for smaller batch updates.
66 Capability
Send bulk emails
Send large-scale distributions via Postmark. Use this for your biggest mailings.
67 Capability
Send email
Send a single transactional email. This is perfect for one-off notifications like password resets.
68 Capability
Send email with template
Send an email using one of your pre-made Postmark templates. This ensures consistent branding.

Capability set18 / 18

69—72

4 capabilities in this set.

Part of 72 available through Postmark.

69 Capability
Activate bounce
Reactivate an email address that was previously bounced. Use this if a user has fixed their issues.
70 Capability
Add domain
Add a new domain to your account. Use this to expand your sending reach.
71 Capability
Archive message stream
Move a message stream into the archive. Use this to hide old data from your active list.
72 Capability
Bypass inbound message
Ignore the rules for a specific blocked inbound message. Use this for troubleshooting specific cases.

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_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp

Step 01

Open Connectors

In Claude Web or Claude Desktop, open Settings and choose Connectors.
Step 02

Add the URL

Choose Add custom connector, name it Postmark, and paste the URL above.
Step 03

Turn it on in chat

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

ChatGPT · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP

https://edge.vinkius.com/vk_preview_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp

Step 01

Open MCP settings

On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
Step 02

Add the URL

Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the Postmark URL.
Step 03

Save and start

Save the connection and enable Postmark in your conversation. Desktop may ask you to restart once.

Cursor · IDE configuration

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "postmark-extended-1": {
      "url": "https://edge.vinkius.com/vk_preview_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp"
    }
  }
}

Step 01

Open MCP Settings

Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
Step 02

Add the server config

Paste the JSON configuration above into the mcp.json file that opens
Step 03

Save the file

Cursor will automatically detect the new Connector
Step 04

Start using Postmark

Open Agent mode in chat and ask: "Using Postmark, help me...". 72 tools available

VS Code Copilot · IDE configuration

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "postmark-extended-1": {
      "url": "https://edge.vinkius.com/vk_preview_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp"
    }
  }
}

Step 01

Create MCP config

Create a .vscode/mcp.json file in your project root
Step 02

Add the server config

Paste the JSON configuration above
Step 03

Enable Agent mode

Open GitHub Copilot Chat and switch to Agent mode using the dropdown
Step 04

Start using Postmark

Ask Copilot: "Using Postmark, help me...". 72 tools available

Windsurf · IDE configuration

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "postmark-extended-1": {
      "url": "https://edge.vinkius.com/vk_preview_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp"
    }
  }
}

Step 01

Open MCP Settings

Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
Step 02

Add the server

Paste the JSON configuration above into mcp_config.json
Step 03

Save and reload

Windsurf will detect the new server automatically
Step 04

Start using Postmark

Open Cascade and ask: "Using Postmark, help me...". 72 tools available

Cline · IDE configuration

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "postmark-extended-1": {
      "url": "https://edge.vinkius.com/vk_preview_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp"
    }
  }
}

Step 01

Open Cline MCP Settings

Click the Connectors icon in the Cline sidebar panel
Step 02

Add remote server

Click "Add Connector" and paste the configuration above
Step 03

Enable the server

Toggle the server switch to ON
Step 04

Start using Postmark

Ask Cline: "Using Postmark, help me...". 72 tools available

Claude Code · Terminal command

Official guide ↗

Advanced setup

claude mcp add postmark-extended-1 --transport http "https://edge.vinkius.com/vk_preview_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp"

Step 01

Install Claude Code

Run npm install -g @anthropic-ai/claude-code if not already installed
Step 02

Add the Connector

Run the command above in your terminal
Step 03

Verify the connection

Run claude mcp to list connected servers, or type /mcp inside a session
Step 04

Start using Postmark

Ask Claude: "Using Postmark, show me...". 72 tools are ready

Where the request belongs

Work Postmark can move forward.

Built around the request

This is for the developer who hates manual testing, the marketing ops person managing hundreds of templates, and the support lead who needs automated, personalized follow-ups.

01

Full-Stack Developer

Testing transactional emails and validating template syntax directly from the IDE.

02

Marketing Operations Manager

Updating email copy and managing bulk distributions without leaving their workflow.

03

Customer Success Lead

Automating personalized follow-ups and checking delivery stats for high-priority users.

Build the capability set

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

Browse Connectors

01 11 capabilities

Postmark

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

02 12 capabilities

UniOne

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

03 12 capabilities

Mailjet

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

04 12 capabilities

SendGrid

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

05 12 capabilities

MailerSend

Send transactional and marketing emails with templates, analytics, and deliverability capabilities built for developers and businesses.

Bring your own AI

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

Before you connect

Questions about Postmark.

The practical details behind the request, access and result.

Can the Postmark MCP help me send bulk emails?

Yes, it allows your agent to trigger bulk and batch email sending directly. You can describe the recipient list and content, and the agent handles the rest.

How do I manage my email templates with this?

You can ask your agent to list, create, edit, or delete templates. It can even validate them to make sure they won't break when you send them.

Can I use the Postmark MCP to check if my emails are getting opened?

Yes, your agent can pull data from the open and click statistics to give you a summary of how users are interacting with your messages.

Does this Connector support GDPR data removal?

Yes, you can use the request data removal capability to tell your agent to handle recipient data removal requests for you automatically.

Can I rotate my DKIM keys using this?

Absolutely. You can ask your agent to rotate the keys and then verify the domain setup to ensure everything is configured correctly.

How does this help with testing?

It lets you use the send email capability to trigger notifications instantly from your AI client. You don't have to leave your workspace to see how a message looks.

Can I send multiple emails in a single request?

Yes! You can use send_batch_emails to send up to 500 messages at once, or send_bulk_emails for larger distributions using templates and recipient variables.

How do I use my existing Postmark templates?

Use the send_email_with_template capability. You just need to provide the TemplateId or TemplateAlias and the TemplateModel containing your dynamic variables.

Can I manage my templates without leaving the chat?

Absolutely. You can use list_templates, create_template, edit_template, and delete_template to perform full CRUD operations on your Postmark server templates.

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.

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