Grades are a hygiene check, not a security guarantee.

MCP, MCP server

MAILTYPE Email Domain Capability Intelligence

Email/domain → objective mail capability intelligence.

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 324105a85396, unchanged since the check below.

NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_ENV_READ

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    mailtype.mjs, line 15 const r=await fetch(`${GOOGLE_DOH}?name=${encodeURIComponent(name)}&type=${encodeURIComponent(type)}`,{headers:{accept:'application/dns-json','user-agent':'MAILTYPE/1.0'}});

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    mailtype.mjs, line 15 const r=await fetch(`${GOOGLE_DOH}?name=${encodeURIComponent(name)}&type=${encodeURIComponent(type)}`,{headers:{accept:'application/dns-json','user-agent':'MAILTYPE/1.0'}});

  • SECRETS_ENV_READ Note

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

    server.mjs, line 11 const API_KEYS = (process.env.MAILTYPE_API_KEYS || '')

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. can reach mta-sts.. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    mailtype.mjs, line 15

    const r=await fetch(`${GOOGLE_DOH}?name=${encodeURIComponent(name)}&type=${encodeURIComponent(type)}`,{headers:{accept:'application/dns-json','user-agent':'MAILTYPE/1.0'}});

    mailtype.mjs, line 73

    const r=await fetch(`https://mta-sts.${domain}/.well-known/mta-sts.txt`,{redirect:'follow',signal:AbortSignal.timeout(4000),headers:{'user-agent':'MAILTYPE/1.0'}});

    mailtype.mjs, line 85

    const r=await fetch(DISPOSABLE_URL,{signal:AbortSignal.timeout(10000),headers:{'user-agent':'MAILTYPE/1.0'}});

  • Secrets

    Note

    reads an environment variable.

    SECRETS_ENV_READ

    server.mjs, line 11

    const API_KEYS = (process.env.MAILTYPE_API_KEYS || '')

  • 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

    Pass

    The latest commit is within the last 365 days.

Note

Hygiene check of commit 324105a85396. can reach a host that is not written as a fixed address. can reach mta-sts.. The description does not name that host. reads an environment variable. no licence file found.

Date and source

Date checked:

View source

github.com

Commit graded: 324105a8539688eac14c90f88bd7220ff7d002a0

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