Jason Long > Mail-DKIM-0.39_6 > Mail::DKIM::DNS

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Source   Latest Release: Mail-DKIM-0.40

NAME ^

Mail::DKIM::DNS - performs DNS queries for Mail::DKIM

DESCRIPTION ^

This is the module that performs DNS queries for Mail::DKIM. It contains a few global variables that can be set by the caller in order to change its behavior.

CONFIGURATION ^

There are a few global variables that can be set to modify the behavior of this module.

$Mail::DKIM::DNS::TIMEOUT

This specifies the maximum amount of time (in seconds) to wait for a single DNS query to complete. The default is 10.

$Mail::DKIM::DNS::RESOLVER

This specifies the instance of Net::DNS::Resolver that is used to perform the queries. The default is undef, which causes a brand new default instance of Net::DNS::Resolver to be created for each DNS query.

Use this if you want to provide additional options to Net::DNS::Resolver, such as different timeouts or use of a persistent socket:

  use Mail::DKIM::DNS;
  $Mail::DKIM::DNS::RESOLVER = Net::DNS::Resolver->new(
                    udp_timeout => 3, tcp_timeout => 3, retry => 2,
                 );
  $Mail::DKIM::DNS::RESOLVER->udppacketsize(4096);
  $Mail::DKIM::DNS::RESOLVER->persistent_udp(1);

Note: to disable use of EDNS0 (enabled by default as of Mail::DKIM 0.40):

  $Mail::DKIM::DNS::RESOLVER->udppacketsize(512);

AUTHOR ^

Jason Long, <jlong@messiah.edu>

COPYRIGHT AND LICENSE ^

Copyright (C) 2006-2007, 2012 by Messiah College

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have available.

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