MCP server

SMTP

io.github.ni-c/smtp-mcp

Checked 26 Oct 2026, 08:31 UTC · Still published on its registry; checked against OSV.dev; never run by us

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

Runs on your computer

Website Source

At a glance

Type: MCP server
Publisher: Not verified
Status: Runs on your computer
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code
Last checked: 26 Oct 2026, 08:31 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. It then runs the package on your computer with your permissions. For other apps, copy the setup below.

Claude Code

claude mcp add smtp-mcp --env SMTP_HOST=YOUR_VALUE --env SMTP_USER=YOUR_VALUE --env SMTP_PASSWORD=YOUR_VALUE --env SMTP_FROM=YOUR_VALUE -- npx -y @ni-c/smtp-mcp@0.2.0

Claude Desktop

{"mcpServers":{"smtp-mcp":{"command":"npx","args":["-y","@ni-c/smtp-mcp@0.2.0"],"env":{"SMTP_HOST":"YOUR_VALUE","SMTP_USER":"YOUR_VALUE","SMTP_PASSWORD":"YOUR_VALUE","SMTP_FROM":"YOUR_VALUE"}}}}

Codex (config.toml)

[mcp_servers.smtp-mcp]
command = "npx"
args = ["-y","@ni-c/smtp-mcp@0.2.0"]
env = { SMTP_HOST = "YOUR_VALUE", SMTP_USER = "YOUR_VALUE", SMTP_PASSWORD = "YOUR_VALUE", SMTP_FROM = "YOUR_VALUE" }

Gemini CLI

{"mcpServers":{"smtp-mcp":{"command":"npx","args":["-y","@ni-c/smtp-mcp@0.2.0"],"env":{"SMTP_HOST":"YOUR_VALUE","SMTP_USER":"YOUR_VALUE","SMTP_PASSWORD":"YOUR_VALUE","SMTP_FROM":"YOUR_VALUE"}}}}

Cursor

{"mcpServers":{"smtp-mcp":{"command":"npx","args":["-y","@ni-c/smtp-mcp@0.2.0"],"env":{"SMTP_HOST":"YOUR_VALUE","SMTP_USER":"YOUR_VALUE","SMTP_PASSWORD":"YOUR_VALUE","SMTP_FROM":"YOUR_VALUE"}}}}

VS Code

{"servers":{"smtp-mcp":{"type":"stdio","command":"npx","args":["-y","@ni-c/smtp-mcp@0.2.0"],"env":{"SMTP_HOST":"YOUR_VALUE","SMTP_USER":"YOUR_VALUE","SMTP_PASSWORD":"YOUR_VALUE","SMTP_FROM":"YOUR_VALUE"}}}}

Runs on your computer with your permissions: check the package and its source before installing. Replace YOUR_VALUE with your own SMTP_HOST, SMTP_USER, SMTP_PASSWORD, SMTP_FROM.

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