One-Click Unsubscribe Header Checker
Inspect marketing-message evidence for one-click unsubscribe headers, HTTPS endpoints, and a visible body marker.
What problem does One-Click Unsubscribe Header Checker solve?
Bulk marketing messages can carry a body unsubscribe link yet still lack the paired headers required for standards-based one-click behavior.
Use it to
- Preflight a marketing message sample.
- Verify the exact List-Unsubscribe-Post value.
- Document message-level header evidence for provider support.
What it returns
- findings.csv with stable codes and record identifiers
- review-manifest.csv with every reviewed item
- result.json with READY, REVIEW, or BLOCK gate
- report.md with a human-readable decision handoff
A representative input and result
Access and approval boundaries
- Read access to one user-supplied local JSON evidence file.
- Write access only to the selected local output directory.
- No browser, network, credential, account, environment-variable, or external-action permission.
Known limitations
- It does not send mail or call an unsubscribe endpoint.
- A passing header check does not prove mailbox-provider delivery or UI rendering.
- The owner must correctly classify marketing and subscription messages.
Questions
Does it change or upload anything?
No. It reads supplied local evidence and writes only to the selected output directory.
Is this an AI judgment?
No. The packaged checker is deterministic and applies documented rules to the supplied input.
What does a ready result mean?
It means no automated finding was produced. The responsible owner still reviews the original source and decides what to do.
How does malformed input behave?
Invalid JSON, duplicate identifiers, missing required arrays, and invalid core values fail closed.
Can I audit the result?
Yes. Every finding carries a stable code, record identifier, severity, source, and message.
One-Click Unsubscribe Header Checker keeps proof and approval boundaries visible.
The listing includes the tested package, realistic samples, declared permissions, and known limitations.
Get One-Click Unsubscribe Header Checker on Agensi