dnsbl.catbull.com

dnsbl

• catbull multimedia dns based email-blocklist for known IPv4 SPAM sources.
• contact me for removal requests or in case you have any related questions.

test an IPv4

• you are able to test an IPv4 address all by yourself
• howto reverse your IPv4 address:

  192.168.0.123

  becomes

  123.0.168.192

• use the following command

  dig <reverse your IPv4 address>.dnsbl.catbull.com

• if the result is 127.0.0.3 or similar to the following answer your address is currently in the database:

  ;; ANSWER SECTION:
  <reverse your IPv4 address>.dnsbl.catbull.com. 900 IN	A	127.0.0.3
  

usage

• base: dnsbl.catbull.com
• common result for SPAM sources: 127.0.0.3
• more information on dns based rbls: http://en.wikipedia.org/wiki/DNSBL

example: rbl enabled qmail or qmail-ldap

• put the line:
  

  dnsbl.catbull.com       reject       127.0.0.3       catbull dnsbl http://dnsbl.catbull.com/

• into the file:
  

  /var/qmail/control/rbllist