Grades are a hygiene check, not a security guarantee.

MCP, MCP server

email

Email management via IMAP/SMTP — multi-account

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.

Rescanned at commit f52a503c02f7, unchanged since the check below.

INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED SECRETS_ENV_READ

Why this grade

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    package.json, line 64 @modelcontextprotocol/sdk

  • NETWORK_NO_FIXED_HOST Low

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

    src/tools/helpers/oauth2.test.ts, line 595 // No additional device code fetch (only background poll may have fired)

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    biome.json, line 30 "!**/.env",

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    scripts/preserve-diacritics.py, line 124 raw = subprocess.check_output(["git", *args])

  • SECRETS_ENV_READ Note

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

    src/credential-state.test.ts, line 55 delete process.env.EMAIL_CREDENTIALS

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    scripts/preserve-diacritics.py, line 124

    raw = subprocess.check_output(["git", *args])

    scripts/repo-bootstrap/_lib.py, line 105

    result = subprocess.run(

  • Install and update

    Concern

    dependencies are not pinned.

    INSTALL_UNPINNED

    package.json, line 64

    @modelcontextprotocol/sdk

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/tools/helpers/oauth2.test.ts, line 595

    // No additional device code fetch (only background poll may have fired)

    src/tools/helpers/oauth2.ts, line 480

    const response = await fetch(tokenUrl(), {

    src/tools/helpers/oauth2.ts, line 601

    const response = await fetch(deviceCodeUrl(), {

    Show more

    src/tools/helpers/oauth2.ts, line 644

    const response = await fetch(tokenUrl(), {

    src/tools/helpers/oauth2.ts, line 1002

    const tokenResponse = await fetch(tokenUrl(), {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/credential-state.test.ts, line 55

    delete process.env.EMAIL_CREDENTIALS

    src/credential-state.test.ts, line 57

    delete process.env.EMAIL_APP_PASSWORD

    biome.json, line 30

    "!**/.env",

    Show more

    src/credential-state.test.ts, line 65

    delete process.env.EMAIL_CREDENTIALS

    src/credential-state.test.ts, line 67

    delete process.env.EMAIL_APP_PASSWORD

    src/credential-state.test.ts, line 146

    process.env.EMAIL_CREDENTIALS = 'A:B'

    src/credential-state.test.ts, line 154

    process.env.EMAIL_APP_PASSWORD = 'P'

    src/credential-state.test.ts, line 157

    expect(process.env.EMAIL_CREDENTIALS).toBe('U:P')

    src/credential-state.test.ts, line 167

    process.env.EMAIL_APP_PASSWORD = 'P'

    .gitignore, line 11

    .DS_Store

  • Agent instructions

    Pass

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

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit f52a503c02f7. requests shell access. The manifest names this permission. dependencies are not pinned. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: f52a503c02f7712d53f68c01a7b833671df450a7

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