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Mailows

MCP server · GitHub · graded 2026-10-23Source linked

Give AI agents their own email inboxes: list, read and send mail via scoped, revocable OAuth grants.

No outside reports on file

Mailows connects to external service APIs and requires API keys or tokens; restrict its folder reach, network access, and credentials before installing.

Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee.

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What it can access

  • Local filesNo local folder access notedLOW
  • Command executionNo shell command runner notedLOW
  • Network reachConnects to outside service APINOTED
  • CredentialsRequires API key or tokenREVIEW
  • Package sourceGitHub (mailows/mailows-grok-plugin)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

No npm or PyPI package is listed. Install from source: github.com/mailows/mailows-grok-plugin ↗

All setup options ↓

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About Mailows

Mailows is an MCP server focused on Communication: Give AI agents their own email inboxes: list, read and send mail via scoped, revocable OAuth grants.

It is hosted on GitHub at mailows/mailows-grok-plugin (last repository push on 2026-09-27). Based on its public metadata, its operational scope includes: connects to outside service api, requires api key or token.

Setup

These use the package this listing points to. Check the project’s own instructions before running anything.

No npm or PyPI package is listed for this MCP server. Source code and setup steps: github.com/mailows/mailows-grok-plugin.

Why this grade

DD — High risk signals

Signal-based grade (1/7 points): public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

4/100
Listing last refreshed
2026-10-28

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Security reports

No reports found for this package in our research (last checked 2026-10-29).

Check a specific version →

Risks to watch for

  • External API & account scope: Connects to third-party service APIs. Use a dedicated, least-privilege token scoped only to the workspaces or repositories this tool needs.
  • Credential & token exposure: Requires API keys or secrets in configuration. Store credentials in environment variables with read-only or minimum required scopes and rotate them regularly.
  • Dependency & version pinning: Distributed via GitHub (mailows/mailows-grok-plugin). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

  • Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
  • Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

  • Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
  • If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

  • Check its activity history or logs weekly at first, and look at what it changed or sent.
  • Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

  • It asks for more access than its job requires, or prompts you to paste passwords.
  • It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install Mailows?

Mailows does not publish a standalone npm or PyPI package. Clone or follow the setup instructions in its source repository at github.com/mailows/mailows-grok-plugin.

Are there security reports about Mailows?

No reports found for this package in our research (last checked 2026-10-29). Mailows currently holds Grade D (High risk signals) based on public adoption and transparency signals. Review the permissions and source repository before granting access to local files, shell commands, or API keys.

Is Mailows actively maintained?

We do not have star or download counts on file for Mailows yet (listing refreshed 2026-10-28). Check the commit history and open issues at github.com/mailows/mailows-grok-plugin before relying on it.

What are alternatives to Mailows?

Compare Mailows side by side with similar MCP servers in the Related tools section on this page, or browse all MCP servers on AgentArmorHQ.

README badge and team notes

Maintain or use Mailows? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade D for Mailows

GitHub README Markdown:

markdown
[![AgentArmorHQ Risk Grade for Mailows](https://agentarmorhq.com/api/badge/mailows-mailows-grok-plugin)](https://agentarmorhq.com/skills/mailows-mailows-grok-plugin)

HTML embed:

html
<a href="https://agentarmorhq.com/skills/mailows-mailows-grok-plugin"><img src="https://agentarmorhq.com/api/badge/mailows-mailows-grok-plugin" alt="AgentArmorHQ Risk Grade for Mailows" height="20" /></a>

Terminal check:

terminal
curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "mailows-mailows-grok-plugin"

Share with your security lead

Need sign-off to use Mailows? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: Mailows
- **Listing URL:** https://agentarmorhq.com/skills/mailows-mailows-grok-plugin
- **Type:** App connector
- **Risk Grade:** Grade D (High risk signals)
- **Outside Security Advisories on File:** 0

#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** No shell command runner noted
- **Network reach:** Connects to outside service API
- **Credentials:** Requires API key or token
- **Package source:** GitHub (mailows/mailows-grok-plugin)

#### Recommended Hardened Setup
- **Source Repo:** https://github.com/mailows/mailows-grok-plugin
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type
App connector
Publisher
mailows
Source code
github.com/mailows/mailows-grok-plugin
Est. context load
~850 tokens / turn (~5 tool schemas, 0.43% of 200k context)
Last updated
2026-10-28
Last graded
2026-10-23

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