// SCAN REPORT

Postmark MCP Server

4 tools. 2 can modify or destroy data without limits.

2 write tools that can modify data. Rate limits recommended.

Last updated: 2 Jul 2026

2 can modify or destroy data

2 read-only

4 tools total

Community server · catalogue entry verified 02/07/2026

How to control Postmark MCP Server ↓

TOOL MAP

What Postmark MCP Server exposes to your agents

Read (2) Write / Execute (2) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous Postmark MCP Server tools

Write · Medium sendEmail Sending email is a write operation that creates new data (email messages) in an external system with reversible side effects. Write · Medium sendEmailWithTemplate sendEmailWithTemplate sends emails, which creates new data (transmitted messages) and has side effects on external systems (email delivery to recipients).

2 of Postmark MCP Server's 4 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Postmark MCP Server

PolicyLayer is an MCP gateway — it sits between your AI agents and Postmark MCP Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "sendEmail": {
    "limits": [
      {
        "counter": "sendemail_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "getDeliveryStats": {
    "limits": [
      {
        "counter": "getdeliverystats_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Postmark MCP Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON POSTMARK →

Instant setup, no code required.

FULL CATALOGUE

All 4 Postmark MCP Server tools

WRITE 2 tools

Write sendEmail sendEmail Write sendEmailWithTemplate sendEmailWithTemplate

READ 2 tools

Read getDeliveryStats getDeliveryStats Read listTemplates listTemplates

FAQ

Questions about Postmark MCP Server

How do I prevent bulk modifications through Postmark MCP Server? +

The Postmark MCP Server server has 2 write tools including sendEmail, sendEmailWithTemplate. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Postmark MCP Server.

How many tools does the Postmark MCP Server MCP server expose? +

4 tools across 2 categories: Read, Write. 2 are read-only. 2 can modify, create, or delete data.

How do I enforce a policy on Postmark MCP Server? +

Register the Postmark MCP Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Postmark MCP Server tool call.

Deterministic rules across all 4 Postmark MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON POSTMARK →

Instant setup, no code required.

4 Postmark MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.