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BlacklistMonitoring
IP blacklist ยท Backscatterer.org

Backscatterer lookup and removal

Lists servers that send bounces or auto replies to forged senders (backscatter). Fix the server so it rejects during SMTP instead of bouncing later. Check your IP 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 Backscatterer

Backscatterer removes entries automatically (4 weeks without new backscatter). The operator also sells express removal; waiting is free.

  1. 1 Find the cause on the sending host: a compromised mailbox or script, an open relay, a missing or generic PTR record, a sudden volume spike or a stale list hitting spam traps.
  2. 2 Fix the cause before asking for removal. A list that relists you quickly usually takes longer to remove you the second time.
  3. 3 The entry expires automatically after 4 weeks without new backscatter. A paid express removal exists but is optional.
  4. 4 Re-check the IP address here after the next zone update to confirm the listing is gone. Monitoring alerts you if it comes back.

Backscatterer at a glance

OperatorBackscatterer.org
DNS zoneips.backscatterer.org
ListsIP addresses
Impact on deliveryMedium
RemovalExpires on its own, or paid express removal, after 4 weeks without new backscatter
Removal pagewww.backscatterer.org/?target=test
IPv6IPv4 only

Frequently asked questions

How do I check if I am listed on Backscatterer?

Enter your sending IP in the check box on this page. We query ips.backscatterer.org by DNS and show the result with the return code and what it means.

How do I get removed from Backscatterer?

Backscatterer removes entries automatically (4 weeks without new backscatter). The operator also sells express removal; waiting is free.

Does a Backscatterer listing expire on its own?

Yes. Listings expire after 4 weeks without new backscatter once the problem stops, as long as no new reports arrive.