MCP.Market

Test Mailbox MCP server

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by therealMrFunGuy·io.github.therealMrFunGuy/test-mailbox·v1.0.0
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Disposable email inboxes for testing — create addresses, wait for messages, extract links.

F22/100grade F
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Safety scan
F22/100

full report

Adoption
New

Little public usage data yet

Blocked at the gateway.Blocked at the gateway. A critical finding or a dead endpoint.

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If you have run it, two minutes of your experience saves the next person an afternoon.

Test Mailbox tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.10 · 2026-11-04 · same rubric, same numbers if you re-run it

1 high1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote unreachable: HTTP 5020/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityAPI key sent as a header8/15
  • Maintenanceno repository listed3/15
  • Maintainer identityno repository or website to verify2/10

Findings (2)

  • highRemote endpoint did not respondreliability.unreachable

    HTTP 502

  • lowNo source repository listedmaint.no-repo
Overall 22/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Test Mailbox compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
22/100
higher than 1% of 916 Email servers
Uptime
0%
of our recent checks; the typical remote Email server answers 100%

Install Test Mailbox in Claude Code, Cursor or VS Code

claude mcp add --transport http test-mailbox https://mail.rjctdlabs.xyz/sse
Add to Cursor

Test Mailbox: common questions

Is Test Mailbox MCP server safe?
No: it is graded F and blocked at the gateway (22/100). Read the Test Mailbox safety report
How do I install Test Mailbox?
It runs remotely at mail.rjctdlabs.xyz. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Test Mailbox need an API key?
Yes. The registry entry asks for X-API-Key.
Is Test Mailbox maintained?
The latest release is v1.0.0.
Is Test Mailbox up?
0% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Test Mailbox?
Servers from other publishers that do the same job: Openagentemail MCP server, MailProbe MCP server and send0 MCP server.
How does Test Mailbox compare with other Email MCP servers?
safety score 22/100 (higher than 1% of 916 Email servers); uptime 0% (of our recent checks; the typical remote Email server answers 100%). Full comparison.

Alternatives to Test Mailbox

Same job from other publishers: the closest match first, then the best rated.

  • Openagentemail
    Unlimited agent mailboxes — create identities, read/wait for mail, extract OTPs, send email.
    B
  • MailProbe
    Verify email addresses in real time: deliverability, disposable and role addresses, typo fixes.
    A
  • send0
    Email inboxes for AI agents: create an address, wait for codes and links, send and reply in threads.
    A
  • Tmailor temporary email
    Receive-only temporary email addresses for AI agents: create an inbox, wait for an email, read it.
    B
  • smails
    Disposable email inboxes for AI agents: create an address, wait for the verification email.
    B

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