MCP server

Zerosmtp

io.github.msgwing/zerosmtp

Checked 28 Oct 2026, 09:04 UTC · Deprecated by its author (its registry); checked against OSV.dev; never run by us

A free SMTP relay that still takes a username and password, for devices that cannot do OAuth 2.0.

Runs on your computerDeprecated by its author: ZeroSMTP ends 31 Dec 2026

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: 28 Oct 2026, 09:04 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 zerosmtp -- npx -y zerosmtp-mcp@1.0.2

Claude Desktop

{"mcpServers":{"zerosmtp":{"command":"npx","args":["-y","zerosmtp-mcp@1.0.2"]}}}

Codex (config.toml)

[mcp_servers.zerosmtp]
command = "npx"
args = ["-y","zerosmtp-mcp@1.0.2"]

Gemini CLI

{"mcpServers":{"zerosmtp":{"command":"npx","args":["-y","zerosmtp-mcp@1.0.2"]}}}

Cursor

{"mcpServers":{"zerosmtp":{"command":"npx","args":["-y","zerosmtp-mcp@1.0.2"]}}}

VS Code

{"servers":{"zerosmtp":{"type":"stdio","command":"npx","args":["-y","zerosmtp-mcp@1.0.2"]}}}

Runs on your computer with your permissions: check the package and its source before installing.

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