agentmods.dev

gmail-postmaster-tools

An MCP server for working with Gmail Postmaster Tools, a Google service that reports how Gmail treats mail sent from a domain. The input only identifies its installation command and does not describe its available operations.

In plain words
What is it for?
It is for connecting an agent to Gmail Postmaster Tools, but the specific jobs it supports are not stated here.
Why use it?
The supplied information is too thin to say what tasks it performs or what problem it removes. It only shows how the server is configured.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

6 1mo ago A scan tokens not measured original MIT
View the source file optipub/gmail-postmaster-tools-mcp
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add mcp/optipub/gmail-postmaster-tools-mcp/gmail-postmaster-tools
Clone the repo
git clone --depth 1 https://github.com/optipub/gmail-postmaster-tools-mcp

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

gmail-postmaster-tools scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

server.json · 7 lines

What it actually says

{
  "gmail-postmaster-tools": {
    "command": "https://github.com/optipub/gmail-postmaster-tools-mcp/releases/download/v1.0.1/gmail-postmaster-tools.mcpb",
    "args": [],
    "env": {}
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 7 lines scan A 97f4e4d03925

Subscribe to this mod's changes

gmail-postmaster-tools is an MCP server published in the GitHub repository optipub/gmail-postmaster-tools-mcp (6 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Analytics and metricsMarketing and SEOcompliancedeliverabilityemailemail-deliverabilitygmailgoogle
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