Postmark Connector for AI agents.
10 live capabilities
Manage transactional emails and track delivery stats directly from your chat.
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Why people use Postmark
Troubleshooting Postmark Email Delivery Failures
This Connector changes that. You just tell your agent to check the latest bounces. It pulls the logs, identifies the error, and tells you exactly what is wrong in one sentence.
What Vinkius changes
You get direct control over your email infrastructure without leaving your chat window.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 5,900+ Connectors
- Real-world use case 01
Debugging a failed signup
A user says they didn't get a welcome email.
- Real-world use case 02
Cleaning up legacy assets
You need to clear out old marketing mail.
- Real-world use case 03
Verifying webhook triggers
You just set up a new webhook.
Complete set · 10capabilities
The complete Postmark capability set.
These are the exact actions your AI can choose when you ask it to work with Postmark.
01—04
4 capabilities in this set.
Part of 10 available through Postmark.
- 01 Capability
Update server config
Changes the name of your Postmark configuration. Use this to keep your account details current.
- 02 Capability
Get bounce logs
Retrieves the raw SMTP traces for a specific email bounce. This explains why a message failed to arrive.
- 03 Capability
List spam complaints
Lists the recent spam complaints against your sending domain. This is vital for monitoring your sender reputation.
- 04 Capability
List templates
Shows all the email templates currently saved in your account. Use this to manage your available layouts.
05—07
3 capabilities in this set.
Part of 10 available through Postmark.
- 05 Capability
Delete template
Permanently removes an email template from your account. This helps keep your mailing assets clean.
- 06 Capability
List bounces
Shows a list of the most recent email bounces. Use this to quickly identify delivery issues.
- 07 Capability
Get delivery stats
Pulls the delivery metrics for your Postmark account. This gives you a clear view of your sending health.
08—10
3 capabilities in this set.
Part of 10 available through Postmark.
- 08 Capability
Send email
Sends a new plain text or HTML email. This is the primary way to dispatch messages via your agent.
- 09 Capability
Send with template
Triggers an email using one of your pre-made Postmark templates. This is best for consistent transactional mail.
- 10 Capability
Get server config
Fetches the current configuration settings for your Postmark account. This helps you audit your active setup.
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 previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_KPq8li4s6pf752WqbtPQw1PlrIw8fp2WAbMU1CoL/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
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_KPq8li4s6pf752WqbtPQw1PlrIw8fp2WAbMU1CoL/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
Advanced setup
{
"mcpServers": {
"postmark": {
"url": "https://edge.vinkius.com/vk_preview_KPq8li4s6pf752WqbtPQw1PlrIw8fp2WAbMU1CoL/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...". 10 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"postmark": {
"url": "https://edge.vinkius.com/vk_preview_KPq8li4s6pf752WqbtPQw1PlrIw8fp2WAbMU1CoL/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...". 10 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"postmark": {
"url": "https://edge.vinkius.com/vk_preview_KPq8li4s6pf752WqbtPQw1PlrIw8fp2WAbMU1CoL/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...". 10 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"postmark": {
"url": "https://edge.vinkius.com/vk_preview_KPq8li4s6pf752WqbtPQw1PlrIw8fp2WAbMU1CoL/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...". 10 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add postmark --transport http "https://edge.vinkius.com/vk_preview_KPq8li4s6pf752WqbtPQw1PlrIw8fp2WAbMU1CoL/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...". 10 tools are ready
Where the request belongs
Work Postmark can move forward.
This is for the engineers and support folks who are tired of digging through logs to figure out why a user didn't get a password reset or an order confirmation.
Backend Engineer
Updates account names or checks webhook constraints during a deployment.
Support Specialist
Investigates hard bounces for angry customers by pulling SMTP traces.
QA Tester
Triggers test templates and checks delivery metrics to verify mail flows.
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
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Maileroo
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Bring your own AI
Change the model, client or framework. Keep Postmark connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
Zencoder -
Goose -
Void -
Augment Code -
Amp -
Qodo -
Tabnine -
Pieces -
Sourcegraph Cody -
JetBrains -
Warp -
Amazon Q -
Antigravity -
BoltAI -
Raycast -
Jan -
LM Studio -
AnythingLLM -
Open WebUI -
Msty -
Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about Postmark.
The practical details behind the request, access and result.
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).
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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