How to set up List-Unsubscribe on Cloudflare

Step by step List-Unsubscribe setup for Cloudflare: complete instructions, examples, verification commands, and common pitfalls.

Want to check your domain while following this guide?

Run a free SPF, DKIM and DMARC check on your domain to see exactly what is passing and what needs fixing.

No signup required. Works on any domain.

search Run a Free Domain Check notifications_active Monitor my domain

This is a reference guide for configuring List-Unsubscribe on Cloudflare. Use it while editing DNS or when troubleshooting deliverability.

Tip: Here’s a reliable, copy-pasteable way to set up List-Unsubscribe using Cloudflare. Then verify everything with the InboxGreen Free Checker.

Provider-specific notes for Cloudflare

  • Cloudflare DNS caches aggressively. A record that looks correct in the UI can take a few minutes to resolve externally. Always verify with dig or a checker after saving.
  • TXT records are never proxied (orange cloud does not apply), but people still get confused. Make sure your SPF and DMARC records have a grey cloud icon.
  • Cloudflare Dashboard → DNS → Records.

What is List-Unsubscribe?

List-Unsubscribe is a message header that gives inboxes a safe, machine readable way to unsubscribe. Gmail and Outlook often show a clear unsubscribe link when it is present and valid, which reduces spam complaints and protects your sender reputation.

How to enable it in practice

  1. In your sending platform, enable the List-Unsubscribe header or macro in templates.
  2. Use a one click HTTPS link as the main method, with a mailto address as fallback.
  3. Test by sending to a Gmail address and checking “Show original”.

Example headers

List-Unsubscribe: <https://yourdomain.com/u/abcd1234>, <mailto:[email protected]?subject=unsubscribe>
List-Unsubscribe-Post: List-Unsubscribe=One-Click

Common mistakes

  • Using a broken or redirected unsubscribe link that fails when clicked.
  • Only providing a mailto address without a one click URL.
  • Failing to apply the unsubscribe globally across lists and tools.

Related for Cloudflare

quick_reference_all Set up SPF on Cloudflare quick_reference_all Set up DKIM on Cloudflare quick_reference_all Set up DMARC on Cloudflare
Pro tip: Turn on InboxGreen Monitoring to check these records daily and get alerts if something breaks.

Free Deliverability Scan

Check SPF, DKIM, DMARC and List-Unsubscribe for your domain in seconds.

Useful tools

tune SPF Generator tune DMARC Generator verified Badges