Radmail MCP vs Zoho Mail MCP

In-depth architectural comparison of the Radmail MCP and Zoho Mail MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Radmail MCP when:

• You need dedicated capabilities in the Communication domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Free / Open Source).
• You have access to required keys: RADMAIL_API_KEY.
• Primary tools included: triage_inbox, list_right_now, why_surfaced.

Explore Radmail MCP Details

Choose Zoho Mail MCP when:

• You need dedicated capabilities in the Communication domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: API Key required (Free / Open Source).
• You have access to required keys: ZOHO_CLIENT_ID, ZOHO_CLIENT_SECRET, ZOHO_REFRESH_TOKEN, ZOHO_ACCOUNT_ID, ZOHO_SENDER.
• Primary tools included: list_inbox, search_emails, read_email.

Feature & Specification Comparison

Specification	Radmail MCP radmail-ai Communication	Zoho Mail MCP SirGreed808 Communication
Summary	Email operating system for agents: a search tool to find the one message by sender/subject/content (no filesystem grep), two-axis triage (importance × urgency), an explainable "Right Now" lane, commitment follow-through, and reviewable drafts. A machine-verifiable hard-stop keeps money/banking-change/first-contact human-only (BEC defense). Zero-auth HTTP sandbox at radmail.ai/api/mcp/sandbox — no account, no key.	MCP server for Zoho Mail. Read, search, and send email from Claude.
Category & Scope

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "radmail-ai-radmail-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "radmail-mcp"
      ],
      "env": {
        "RADMAIL_API_KEY": "YOUR_RADMAIL_API_KEY_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "sirgreed808-zoho-mail-mcp": {
      "url": "https://modelcontextprotocol.io"
    }
  }
}

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