Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Server Email

A Model Context Protocol server that provides email functionality.

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 c57b7ea9921b, unchanged since the check below.

SECRETS_PATH_DOTENV SECRETS_ENV_READ

Why this grade

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    src/mcp_server_email/client.py, line 11 load_dotenv() # load environment variables from .env

  • SECRETS_ENV_READ Note

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

    src/mcp_server_email/server.py, line 26 password = os.getenv("PASSWORD")

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

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/mcp_server_email/client.py, line 11

    load_dotenv() # load environment variables from .env

    src/mcp_server_email/server.py, line 26

    password = os.getenv("PASSWORD")

    src/mcp_server_email/server_fastmcp.py, line 28

    password = os.getenv("PASSWORD")

  • 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

    Note

    the latest commit is more than 365 days old.

    MAINTAINER_STALE

    No file path was stored.

    2025-04-27T22:24:56+08:00

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Note

Hygiene check of commit c57b7ea9921b. reads a credential or environment file. the latest commit is more than 365 days old.

Date and source

Date checked:

View source

github.com

Commit graded: c57b7ea9921b62e588f59cf8fe4646755db9f4e1

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Read how this letter is chosen