Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Email Client

Mail Client MCP is a Python-based email client that allows users to manage email configurations, send emails, and read the latest unread emails.

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 51e431a777cb, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST INSTALL_DOCUMENTED_INSTALLER

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    src/mcp_email_client/config.py, line 56 return os.remove(os.path.join(os.path.dirname(__file__),"config", name + '.json'))

  • NETWORK_NO_FIXED_HOST Low

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

    src/mcp_email_client/mailhandler.py, line 117 _, msg_data = mail.fetch(email_id, '(RFC822)')

  • INSTALL_DOCUMENTED_INSTALLER Note

    Documentation shows an installer that pipes a download into a shell.

    README.md, line 26 curl -LsSf https://astral.sh/uv/install.sh | sh

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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    src/mcp_email_client/config.py, line 56

    return os.remove(os.path.join(os.path.dirname(__file__),"config", name + '.json'))

  • Install and update

    Note

    README documents an installer that pipes a download into a shell.

    INSTALL_DOCUMENTED_INSTALLER

    README.md, line 26

    curl -LsSf https://astral.sh/uv/install.sh | sh

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/mcp_email_client/mailhandler.py, line 117

    _, msg_data = mail.fetch(email_id, '(RFC822)')

    src/mcp_email_client/mailhandler.py, line 255

    _, msg_data = mail.fetch(email_id, '(RFC822)')

  • Secrets

    Pass

    No read of a credential file or secret environment variable found.

  • Agent instructions

    Pass

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

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Note

    no licence file found.

    LICENCE_MISSING

    No file path was stored.

    no licence file found.

  • Maintainer activity

    Note

    the latest commit is more than 365 days old.

    MAINTAINER_STALE

    No file path was stored.

    2025-04-22T09:28:12+07:00

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Note

Hygiene check of commit 51e431a777cb. can delete files. README documents an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. no licence file found. the latest commit is more than 365 days old.

Date and source

Date checked:

View source

github.com

Commit graded: 51e431a777cbc10ec8aecd9507d28e330e1d3247

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