The 0Spam project is supported by donations from great people like you. Donations are used to improve support and functionality of the platform.

Single IP Removal Process

First enter the suspected IP address to check the status in our DNSBL's.

If you are listed and do not yet have an account, create an account or if you already have an account login to make a removal request after you've stopped the spam source.

Sponsor for 6/25/2025

Become a Sponsor

Any time spam is sent to our spam traps, an IP will be listed in the 0spam dnsbl(bl.0spam.org) with the data code of 127.0.0.# and if multiple trap hits are being detected from a single Class C set of IP's the block will be listed in the 0spam Network DNSBL(nbl.0spam.org).

Questions and Answers

• Frequently Asked Q & A
  Commonly asked questions. If you have a question, it's likely already be answered here.
• What is a DNSBL or DNS Block List?
  A list of IP addresses that have been identified as sources of spam, used to block unwanted emails.
• How to remove your IP Address?
  Follow the instructions here to complete the removal of an IP address from 0spam DNSBL
• Why is my IP address listed?
  Common reasons your IP may be listed in the 0spam DNSBL.
• How is 0spam funded
  0Spam is supported by donations and additional services.
• How do I configure 0spam for Sendmail
  Follow these steps to configure bl.0spam.org and rbl.0spam.org in Sendmail