# SMTP

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

- name: io.github.ni-c/smtp-mcp
- version: 0.2.0
- connection class: L0 (run_local_package)
- trust: 90/100
- quality: –/100 (not scored)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.ni-c%2Fsmtp-mcp
- tools: https://api.protogrid.dev/v1/servers/io.github.ni-c%2Fsmtp-mcp/tools

**Runs on your machine: something must execute the package.** Only local packages are published (npm, PyPI, OCI, …). The registry never executes them, so tools are unknown until you run it.

## Connection (mcpServers)

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

Placeholders to fill: `${SMTP_PASSWORD}`.

## Trust

- hygiene: 95
- liveness: n/a
- freshness: 85
- provenance: 90
- drivers: +repository +namespace-matches-repo +website ~liveness-unmeasured ~updated-43d-ago -unpinned-packages(1)
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality –/100 (not scored)

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

### protocol: n/a (weight 25)

- n/a `protocol.modern`, `protocol.stateless`, `protocol.transport`, `protocol.list_ttl`: no remote answered a protocol handshake (not probed yet, unreachable, or local-only)

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: n/a (weight 30)

- n/a `tools.descriptions`, `tools.description_length`, `tools.schemas`, `tools.annotations`, `tools.directory_hints`, `tools.token_cost`, `tools.api_dump`: tool list unknown (behind auth, not probed, or empty)

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool list unknown

### dependencies: 67 (weight 15)

- fail `deps.known_vulns`: 2 advisories to act on (malicious, or rated high or critical with a fix available): GHSA-prgh-xp8r-p3m5 in nodemailer@9.1.1 (direct, fixed in 10.0.5), GHSA-v53p-9fqp-m79j in nodemailer@9.1.1 (direct, fixed in 10.0.6); 3 more of lower severity or without a fix
- pass `deps.mcp_sdk_version`: @modelcontextprotocol/server 2.1.0, no known advisory
- pass `deps.resolvable`: @ni-c/smtp-mcp@0.2.0 resolved: 8 packages

- tools: unknown
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.ni-c/smtp-mcp.svg)](https://protogrid.dev/servers/io.github.ni-c/smtp-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Dependencies

- npm @ni-c/smtp-mcp@0.2.0: resolved, 7 dependencies, MCP SDK @modelcontextprotocol/server 2.1.0
  - GHSA-prgh-xp8r-p3m5 (high) in `` nodemailer@9.1.1 ``, direct, fixed in `` 10.0.5 ``, advisory summary: "Nodemailer addressparser: O(n^2) on comment-joined addresses enables a remote DoS (reachable via mailparser)" https://osv.dev/vulnerability/GHSA-prgh-xp8r-p3m5
  - GHSA-v53p-9fqp-m79j (high) in `` nodemailer@9.1.1 ``, direct, fixed in `` 10.0.6 ``, advisory summary: "Nodemailer: Quadratic backtracking in the addressparser free-text fallback allows remote denial of service" https://osv.dev/vulnerability/GHSA-v53p-9fqp-m79j
  - GHSA-6vj9-mwq6-2f5v (moderate) in `` nodemailer@9.1.1 ``, direct, fixed in `` 10.0.2 ``, advisory summary: "Nodemailer: Process-global DNS cache reuses TLS \`servername\` across transports, enabling cross-tenant SMTP credential disclosure" https://osv.dev/vulnerability/GHSA-6vj9-mwq6-2f5v
  - GHSA-8vvx-rff5-p5rq (moderate) in `` nodemailer@9.1.1 ``, direct, fixed in `` 10.0.2 ``, advisory summary: "Nodemailer: Nested structured recipient arrays bypass the parser depth limit and cause stack exhaustion DoS" https://osv.dev/vulnerability/GHSA-8vvx-rff5-p5rq
  - GHSA-g57g-f23g-4646 (moderate) in `` nodemailer@9.1.1 ``, direct, fixed in `` 10.0.9 ``, advisory summary: "Nodemailer: Quoted local-part can produce malformed envelope recipient through RFC 5322 comment parsing" https://osv.dev/vulnerability/GHSA-g57g-f23g-4646

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

_none_

## Packages

- npm @ni-c/smtp-mcp@0.2.0 secrets: SMTP_PASSWORD
- oci ghcr.io/ni-c/smtp-mcp:0.2.0 secrets: SMTP_PASSWORD

## Tools (0)

_none observed_