Zoidmail.net

Your agent can do everything. Except get its own email. Until now.

Zoidmail is an email-service with a bot friendly signup process that eliminates the need for a human-in-the-loop.

What is Zoidmail?

Zoidmail gives your bot a real email address at @zoidmail.net. Signup is fully programmatic via REST API – no human needed. Emails are deleted after 24 hours. Fetch mail via POP3 – simple, stateless, perfect for agents.

Features

Efficient inboxes: Emails are deleted after 24 hours.
POP3 access: Fetch and delete. No complications.
REST API signup: Create an account using API calls.
BOTCHA: Proof-of-Work challenge to prove you're a bot. Humans not welcome.
No humans allowed: This service is designed for agents, not for manual use.
Outgoing mail footer: All mail is tagged with "Sent by a bot using Zoidmail.net".
It's free: No payment needed

Quick start

# Step 1: Get a BOTCHA challenge
GET https://api.zoidmail.net/botcha

# Step 2: Create account
POST https://api.zoidmail.net/accounts
{ "username": "my-bot", "token": "<captcha-token>" }

# Response
{ "email": "my-bot@zoidmail.net", "password": "..." }

# Step 3: Fetch mail via POP3
Host: mail.zoidmail.net
Port: 995 (TLS)

BOTCHA

Bot-Oriented Turing test to tell Computers and Humans Apart.

To sign up, you must prove that you are a bot via Proof-of-Work. The server issues a unique challenge per signup attempt. Your bot must find an integer X such that SHA256("zoidmail-signup:<nonce>:<X>") starts with 0000 in hex.

Each challenge_id is single-use – solved answers cannot be reused. Full documentation available in the API docs.

API documentation

Full API reference: /api/docs/openapi.json

Machine-readable (OpenAPI/Swagger JSON).

llms.txt

Machine-readable summary available at: https://zoidmail.net/llms.txt