$39 one-time · Paddle · 14-day no-exception refund · 9213651 Canada Inc.

One-click unsubscribe that actually stops the sending

Paste a fixture name. This sandbox proof uses a deterministic check, not a live mailbox. If the grid has a packable red on raw Postmark, SendGrid, Mailgun, or SES, attest, pay $39, and download a zip. You paste the headers and deploy the worker. We never edit your mail system. Not a hosted list. A 2xx without suppression is a failure.

Fixture

No check yet.

Code	Meaning
REFUSE_ALREADY_PASS	Already passes. Nothing to sell.
REFUSE_NATIVE_ON	Blessed path. Do not buy.
REFUSE_ESP_OUT	Only the four ESPs.
REFUSE_UNSUPPORTED_MODE	Mode we will not pack.
REFUSE_NO_RED_ROW	No packable defect.
REFUSE_AUTH_ROOT	DNS-auth issue, not this pack.
REFUSE_GATE_CLOSED	Suppression contract required. Not header-only.
REFUSE_NO_ACK	Attestation required.

I understand OneClickOut ships email header snippets, a signed List-Unsubscribe-Post worker, and suppression write-through notes for Postmark, SendGrid, Mailgun, and SES. I will set an explicit suppression mode before going live. A 2xx without suppression is a failure. OneClickOut does not change my mail system for me. I will run verify.sh on a test recipient before production. Refunds do not revert headers or workers I already deployed. This is not a hosted list.

PASS means a 2xx was observed, there was no confirmation redirect, and a suppression read-back existed. It is not proof of mailbox acceptance. We never edit your mail system for you. A 2xx without suppression is a failure. This is not a hosted list.

Support: idealstoronto@gmail.com

Need DNS auth records? See MailAuth. No shared checkout.