Home | Backscatter | Sender Callouts | Test/Remove IP | Contact

Welcome to backscatterer.org

Our DNSBL lists all Backscatterer and Sender Callout Abuser which we see at the UCEPROTECT-Network.
You can simply use this list via DNS at ips.backscatterer.org for scoring or rejecting bounces and sender callouts from abusive systems.
Operators of big mailservers or providers are recommended to download our zone from UCEPROTECT-Mirrors

ATTENTION: ips.backscatterer.org is NOT a spammerlist. It's a Backscatterer / Sender Callout Abuser list !!!!
Unfortunable many and also big providers do still backscatter. They are flooding you with bounces but will almost always send real mail too.
As long as you don't want to boycott such servers we strongly recommend to use ips.backscatterer.org in safe mode to prevent false positives.
Read your software vendors manual or ask their tech support how you can do DNSBL-Querys if MAIL FROM: is <> or postmaster only.
Used in safe mode ips.backscatterer.org will protect you against misdirected bounces and sender callouts while you can not loose any real mail.

If you need a spammerblacklist we recommend using UCEPROTECT.NET instead

Listing Policy is quite simple. Every IP which backscatters or does sender callouts will be listed the next 4 weeks here.
Currently 74613 IP's are known for abusing the NET in this way !