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BlacklistMonitoring
Domain blacklist ยท RFC-Clueless

RFC-Clueless Postmaster lookup and removal

Domains with no working postmaster@ address, required by RFC 5321. Check your domain below, then follow the removal steps if it is listed.

Checks run by DNS only. Nothing is sent from or to your domain.

How to get removed from RFC-Clueless Postmaster

RFC-Clueless Postmaster has a self service removal form. Fix the cause first, then submit the listed IP or domain.

  1. 1 Look up the domain on the operator's site and read the listing reason and return code.
  2. 2 Find where the domain appears in unwanted mail: compromised website links, a list bought or scraped, affiliate links, a hacked form that sends mail.
  3. 3 Fix the cause before asking for removal. A list that relists you quickly usually takes longer to remove you the second time.
  4. 4 Open the removal page (https://www.rfc-clueless.org/), enter the listed domain and follow the confirmation steps (often an email link).
  5. 5 Re-check the domain here after the next zone update to confirm the listing is gone. Monitoring alerts you if it comes back.

RFC-Clueless Postmaster at a glance

OperatorRFC-Clueless
DNS zonepostmaster.rfc-clueless.org
ListsDomains found in mail
Impact on deliveryLow
RemovalRemoval request form
Removal pagewww.rfc-clueless.org
IPv6IPv4 only

Frequently asked questions

How do I check if I am listed on RFC-Clueless Postmaster?

Enter your domain in the check box on this page. We query postmaster.rfc-clueless.org by DNS and show the result with the return code and what it means.

How do I get removed from RFC-Clueless Postmaster?

RFC-Clueless Postmaster has a self service removal form. Fix the cause first, then submit the listed IP or domain.