NAME

       Mail::SPF::Mod::Exp - SPF record "exp" modifier class

DESCRIPTION

       An object of class Mail::SPF::Mod::Exp represents an SPF record modifier of type "exp".

   Constructors
       The following constructors are provided:

       new(%options): returns Mail::SPF::Mod::Exp
           Creates a new SPF record "exp" modifier object.

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

           domain_spec
               See "new" in Mail::SPF::Mod.

       new_from_string($text, %options): returns Mail::SPF::Mod::Exp; throws
       Mail::SPF::ENothingToParse, Mail::SPF::EInvalidMod
           Creates a new SPF record "exp" modifier object by parsing the string and any options
           given.

   Class methods
       The following class methods are provided:

       name: returns string
           Returns 'exp'.

       name_pattern: returns Regexp
           Returns a regular expression that matches a modifier name of 'exp'.

       precedence: returns real
           Returns a precedence value of 0.2.  See "precedence" in Mail::SPF::Mod.

   Instance methods
       The following instance methods are provided:

       params
           See "params" in Mail::SPF::Mod.

       domain_spec: returns Mail::SPF::MacroString
           Returns the "domain-spec" parameter of the modifier.

       process($server, $request, $result)
           If the given SPF result is a "fail" result, retrieves the authority domain's
           explanation string from the modifier's target domain and attaches it to the SPF
           result.  If an error occurs during the retrieval of the explanation string, does
           nothing, as if the modifier was not present.  See RFC 4408, 6.2, for details.

       See Mail::SPF::Mod for other supported instance methods.

SEE ALSO

       Mail::SPF, Mail::SPF::Mod, Mail::SPF::Term, Mail::SPF::Record

       <http://tools.ietf.org/html/rfc4408>

       For availability, support, and license information, see the README file included with
       Mail::SPF.

AUTHORS

       Julian Mehnle <julian@mehnle.net>, Shevek <cpan@anarres.org>