Slack MCP Server vs Better Email MCP

In-depth architectural comparison of the Slack MCP Server and Better Email 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 Slack MCP Server when:

• You need dedicated capabilities in the Communication domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: other (Free / Open Source).
• You have access to required keys: SLACK_MCP_ADD_MESSAGE_TOOL.
• Primary tools included: UserID, UserName, RealName.

Explore Slack MCP Server Details

Choose Better Email 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: BETTER_EMAIL_MCP_ACCOUNTS.
• Primary tools included: messages, folders, attachments.

Feature & Specification Comparison

Specification	Slack MCP Server korotovsky Communication	Better Email MCP n24q02m Communication
Summary	The most powerful MCP server for Slack Workspaces.	IMAP/SMTP email MCP server with App Passwords (no OAuth2). Auto-discovers Gmail, Outlook, Yahoo, iCloud. 5 composite tools: search, read, send, reply, forward. Multi-account support.
Category & Scope	Communication

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": {
    "korotovsky-slack-mcp-server": {
      "url": "https://api.slack.com/changelog/2023-07-its-later-already-for-stars-and-reminders"
    }
  }
}

{
  "mcpServers": {
    "n24q02m-better-email-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@n24q02m/better-email-mcp"
      ],
      "env": {
        "BETTER_EMAIL_MCP_ACCOUNTS": "YOUR_BETTER_EMAIL_MCP_ACCOUNTS_HERE"
      }
    }
  }
}

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