Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mailtrap Mcp

The official MCP server for Mailtrap — the email delivery platform.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings 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 712d7ade3db1, unchanged since the check below.

OBFUSCATION_ENCODED_BLOB

Why this grade

  • OBFUSCATION_ENCODED_BLOB Medium

    Contains a long base64 shaped string in a file that should be readable.

    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

    src/tools/emailLogs/getEmailLogMessage.ts, line 76

    const rawResponse = await fetch(log.raw_message_url, {

    src/tools/emailLogs/getEmailLogMessage.ts, line 81

    contentText += `\n\nRaw content: Failed to fetch (${rawResponse.status}).`;

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED

    src/client.ts, line 89

    const token = process.env.MAILTRAP_ORGANIZATION_API_TOKEN;

    .gitignore, line 3

    coverage

  • Agent instructions

    Pass

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

  • Obfuscation

    Concern

    contains an encoded blob in a file that should be readable.

    OBFUSCATION_ENCODED_BLOB

    package-lock.json, line 1

    {

    src/tools/templates/schemas/deleteTemplate.ts, line 1

    const deleteTemplateSchema = {

    README.md, line 48

    [![Install in Cursor](https://cursor.com/deeplink/mcp-install-dark.svg)](https://cursor.com/en-US/install-mcp?name=mailtrap&config=eyJlbnYiOnsiTUFJTFRSQVBfQVBJX1RPS0VOIjoieW91cl9tY

  • Licence

    Pass

    A licence file is present (LICENSE.txt).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit 712d7ade3db1. can reach a host that is not written as a fixed address. reads a credential or environment file. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: 712d7ade3db16c4fa304b23e9d8d57a119972a66

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