Courier::Filter::Module::DNSBL(3) DNS black-list filter module for the


use Courier::Filter::Module::DNSBL;

my $module = Courier::Filter::Module::DNSBL->new(
zones => \@dns_zones,

logger => $logger,
inverse => 0,
trusting => 0,
testing => 0,
debugging => 0

my $filter = Courier::Filter->new(
modules => [ $module ],


This class is a filter module class for use with Courier::Filter. It matches a message if the sending machine's IP address (currently IPv4 only) is listed by one of the configured DNS black-lists.


The following constructor is provided:
new(%options): returns Courier::Filter::Module::DNSBL
Creates a new DNSBL filter module.

%options is a list of key/value pairs representing any of the following options:

Required. A reference to an array containing the DNS zone names of the black-lists to be used.

All options of the Courier::Filter::Module constructor are also supported. Please see ``new()'' in Courier::Filter::Module for their descriptions.

Instance methods

See ``Instance methods'' in Courier::Filter::Module for a description of the provided instance methods.


Julian Mehnle <[email protected]>