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Mail::DKIM::Policy(3)                User Contributed Perl Documentation               Mail::DKIM::Policy(3)



NAME
       Mail::DKIM::Policy - abstract base class for originator "signing" policies

SYNOPSIS
         # get all policies that apply to a verified message
         foreach my $policy ($dkim->policies)
         {

             # the name of this policy
             my $name = $policy->name;

             # the location in DNS where this policy was found
             my $location = $policy->location;

             # apply this policy to the message being verified
             my $result = $policy->apply($dkim);

         }

DESCRIPTION
       Between the various versions of the DomainKeys/DKIM standards, several different forms of sender
       "signing" policies have been defined.  In order for the Mail::DKIM library to support these different
       policies, it uses several different subclasses. All subclasses support this general interface, so
       that a program using Mail::DKIM can support any and all policies found for a message.

METHODS
       These methods are supported by all classes implementing the Mail::DKIM::Policy interface.

   apply()
       Apply the policy to the results of a DKIM verifier.

         my $result = $policy->apply($dkim_verifier);

       The caller must provide an instance of Mail::DKIM::Verifier, one which has already been fed the
       message being verified.

       Possible results are:

       accept
           The message is approved by the sender signing policy.

       reject
           The message is rejected by the sender signing policy.

       neutral
           The message is neither approved nor rejected by the sender signing policy. It can be considered
           suspicious.

   as_string()
       The policy as a string.

       Note that the string returned by this method will not necessarily have the tags ordered the same as
       the text record found in DNS.

   is_implied_default_policy()
       Is this policy implied?

         my $is_implied = $policy->is_implied_default_policy;

       If you fetch the policy for a particular domain, but that domain does not have a policy published,
       then the "default policy" is in effect. Use this method to detect when that happens.

   location()
       Where the policy was fetched from.

       This is generally a domain name, the domain name where the policy was published.

       If nothing is published for the domain, and the default policy was returned instead, the location
       will be "undef".

   name()
       Identify what type of policy this is.

       This currently returns strings like "sender", "author", and "ADSP".  It is subject to change in the
       next version of Mail::DKIM.

SEE ALSO
       Mail::DKIM::DkPolicy - for RFC4870(historical) DomainKeys sender signing policies

       Mail::DKIM::DkimPolicy - for early draft DKIM sender signing policies

       Mail::DKIM::AuthorDomainPolicy - for Author Domain Signing Practices (ADSP)

AUTHOR
       Jason Long, <jlong@messiah.edu>

COPYRIGHT AND LICENSE
       Copyright (C) 2006-2009 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.



perl v5.16.2                                     2010-01-23                            Mail::DKIM::Policy(3)