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SMTP

io.github.ni-c/smtp-mcp · version 0.2.0

Community listing. Not installed or verified by cosmic-mcp. Read the source and its permissions before you run it.

MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation

https://github.com/ni-c/smtp-mcp

Quick facts

  • Listing: Community
  • Published Sep 7, 18:06 UTC
  • Transport: stdio
  • Package: npm @ni-c/smtp-mcp 0.2.0
  • Listed by cosmic-mcp: Nov 9, 04:26 UTC

Email

Setup snippets

Generated from the registry entry. cosmic-mcp has not run or reviewed this server; values in angle brackets are yours to fill in.

Run it locally (npm)

npx -y '@ni-c/[email protected]'

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "smtp-mcp": {
      "args": [
        "-y",
        "@ni-c/[email protected]"
      ],
      "command": "npx",
      "env": {
        "SMTP_ALLOWED_RECIPIENTS": "<your smtp allowed recipients>",
        "SMTP_ALLOW_SEND": "<your smtp allow send>",
        "SMTP_ALLOW_TOOLS": "<your smtp allow tools>",
        "SMTP_ATTACHMENT_DIR": "<your smtp attachment dir>",
        "SMTP_ATTACHMENT_TYPES": "<your smtp attachment types>",
        "SMTP_AUDIT_LOG": "<your smtp audit log>",
        "SMTP_DENY_TOOLS": "<your smtp deny tools>",
        "SMTP_FROM": "<your smtp from>",
        "SMTP_HOST": "<your smtp host>",
        "SMTP_INSECURE_TLS": "<your smtp insecure tls>",
        "SMTP_MAX_ATTACHMENT_BYTES": "<your smtp max attachment bytes>",
        "SMTP_MAX_MESSAGE_BYTES": "<your smtp max message bytes>",
        "SMTP_MAX_RECIPIENTS": "<your smtp max recipients>",
        "SMTP_MAX_SENDS_PER_HOUR": "<your smtp max sends per hour>",
        "SMTP_PASSWORD": "<your smtp password>",
        "SMTP_PORT": "<your smtp port>",
        "SMTP_REPLY_TO": "<your smtp reply to>",
        "SMTP_SIGNATURE": "<your smtp signature>",
        "SMTP_TLS": "<your smtp tls>",
        "SMTP_USER": "<your smtp user>"
      }
    }
  }
}

Claude Code

claude mcp add 'smtp-mcp' -- npx -y '@ni-c/[email protected]'

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "smtp-mcp": {
      "args": [
        "-y",
        "@ni-c/[email protected]"
      ],
      "command": "npx",
      "env": {
        "SMTP_ALLOWED_RECIPIENTS": "<your smtp allowed recipients>",
        "SMTP_ALLOW_SEND": "<your smtp allow send>",
        "SMTP_ALLOW_TOOLS": "<your smtp allow tools>",
        "SMTP_ATTACHMENT_DIR": "<your smtp attachment dir>",
        "SMTP_ATTACHMENT_TYPES": "<your smtp attachment types>",
        "SMTP_AUDIT_LOG": "<your smtp audit log>",
        "SMTP_DENY_TOOLS": "<your smtp deny tools>",
        "SMTP_FROM": "<your smtp from>",
        "SMTP_HOST": "<your smtp host>",
        "SMTP_INSECURE_TLS": "<your smtp insecure tls>",
        "SMTP_MAX_ATTACHMENT_BYTES": "<your smtp max attachment bytes>",
        "SMTP_MAX_MESSAGE_BYTES": "<your smtp max message bytes>",
        "SMTP_MAX_RECIPIENTS": "<your smtp max recipients>",
        "SMTP_MAX_SENDS_PER_HOUR": "<your smtp max sends per hour>",
        "SMTP_PASSWORD": "<your smtp password>",
        "SMTP_PORT": "<your smtp port>",
        "SMTP_REPLY_TO": "<your smtp reply to>",
        "SMTP_SIGNATURE": "<your smtp signature>",
        "SMTP_TLS": "<your smtp tls>",
        "SMTP_USER": "<your smtp user>"
      }
    }
  }
}

VS Code (.vscode/mcp.json)

{
  "servers": {
    "smtp-mcp": {
      "args": [
        "-y",
        "@ni-c/[email protected]"
      ],
      "command": "npx",
      "env": {
        "SMTP_ALLOWED_RECIPIENTS": "<your smtp allowed recipients>",
        "SMTP_ALLOW_SEND": "<your smtp allow send>",
        "SMTP_ALLOW_TOOLS": "<your smtp allow tools>",
        "SMTP_ATTACHMENT_DIR": "<your smtp attachment dir>",
        "SMTP_ATTACHMENT_TYPES": "<your smtp attachment types>",
        "SMTP_AUDIT_LOG": "<your smtp audit log>",
        "SMTP_DENY_TOOLS": "<your smtp deny tools>",
        "SMTP_FROM": "<your smtp from>",
        "SMTP_HOST": "<your smtp host>",
        "SMTP_INSECURE_TLS": "<your smtp insecure tls>",
        "SMTP_MAX_ATTACHMENT_BYTES": "<your smtp max attachment bytes>",
        "SMTP_MAX_MESSAGE_BYTES": "<your smtp max message bytes>",
        "SMTP_MAX_RECIPIENTS": "<your smtp max recipients>",
        "SMTP_MAX_SENDS_PER_HOUR": "<your smtp max sends per hour>",
        "SMTP_PASSWORD": "<your smtp password>",
        "SMTP_PORT": "<your smtp port>",
        "SMTP_REPLY_TO": "<your smtp reply to>",
        "SMTP_SIGNATURE": "<your smtp signature>",
        "SMTP_TLS": "<your smtp tls>",
        "SMTP_USER": "<your smtp user>"
      },
      "type": "stdio"
    }
  }
}

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