Test Mailbox is listed as active in the registry but did not answer our last check.
Disposable email inboxes for testing — create addresses, wait for messages, extract links.
Test Mailbox does not always answer
Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.
claude mcp add test-mailbox --transport sse https://mail.rjctdlabs.xyz/ssehttps://mail.rjctdlabs.xyz/sse[mcp_servers.test-mailbox]
url = "https://mail.rjctdlabs.xyz/sse"{
"mcpServers": {
"test-mailbox": {
"url": "https://mail.rjctdlabs.xyz/sse"
}
}
}{
"servers": {
"test-mailbox": {
"type": "sse",
"url": "https://mail.rjctdlabs.xyz/sse"
}
}
}Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://mail.rjctdlabs.xyz/sse | sse | answering | 464 ms | 7 min ago |
Alternatives to Test Mailbox
same job, measured the same wayDisposable email addresses for tests and agents: register, wait for mail, extract codes and links.
Disposable email inboxes for agents and tests: create an address, wait for the email. No signup.
Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links.
Disposable test mailboxes on a real domain: send, receive and assert on real email.
Test an email before it goes out: a disposable address, 41 checks with RFC citations, a fix plan.
Test inboxes for AI agents testing your app: block until the OTP or magic link arrives.
Check if a signup email is disposable, free, an alias, testing, parked or unknown, with evidence.
Free agent tools, no sign-in: browser flows, test inboxes, web extract, site and domain checks.
Test Mailbox — questions
Answers built from our own checks of this server.