Grades are a hygiene check, not a security guarantee.

MCP, MCP server

mailcheap

mailcheap, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    app/(site)/docs/page.js, line 49 code={`curl ${appUrl}${API_BASE_PATH}/newsletters \\\n -H "Authorization: Bearer $MAILCHEAP_API_KEY"`}

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .env.example, line 1 # Copy to .env.local for local development. On Vercel, add these in Project Settings > Environment Variables.

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    app/api/webhooks/stripe/route.js, line 16 const secret = process.env.STRIPE_WEBHOOK_SECRET;

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    package-lock.json, line 1 {

  • OBFUSCATION_FILE_CAP_REACHED Note

    The 400 file cap was reached before every file was read.

    package-lock.json, line 1 {

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    app/(site)/docs/page.js, line 49

    code={`curl ${appUrl}${API_BASE_PATH}/newsletters \\\n -H "Authorization: Bearer $MAILCHEAP_API_KEY"`}

    app/(site)/docs/authentication/page.js, line 88

    code={`await fetch("${appUrl}${API_BASE_PATH}/contacts", {

    components/TrackView.jsx, line 18

    fetch("/api/views", {

    Show more

    lib/dns-broker.js, line 28

    response = await fetch(broker.url, {

    lib/domain-age.js, line 42

    const response = await fetch(`${RDAP_URL}${encodeURIComponent(labels.slice(index).join("."))}`, {

    lib/google-postmaster.js, line 51

    response = await fetch(url, {

    lib/mcp/server.js, line 113

    return handler.fetch(request, { authInfo: auth.authInfo });

    lib/platform-email.js, line 10

    const response = await fetch(RESEND_URL, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    app/api/webhooks/stripe/route.js, line 16

    const secret = process.env.STRIPE_WEBHOOK_SECRET;

    .env.example, line 1

    # Copy to .env.local for local development. On Vercel, add these in Project Settings > Environment Variables.

    .gitignore, line 33

    # env files (can opt-in for committing if needed)

    Show more

    .gitignore, line 43

    !.env.example

    README.md, line 109

    [`.env.example`](.env.example) lists every variable with what it does, the optional ones included: Google sign-in and Postmaster Tools, image uploads, Redis, Telegram alerts, the s

    README.md, line 323

    cp .env.example .env.local # set MONGODB_URI, BETTER_AUTH_SECRET, SUPPRESSION_HASH_KEY, ADMIN_EMAILS

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read. the file cap was reached before every file was read.

    OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

    package-lock.json, line 1

    {

    lib/activity.js, line 1

    const MAX_USER_AGENT_LENGTH = 160;

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 0d834826e0c4. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: 0d834826e0c45a160c1ee20a86421abf142bf1c9

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen