
Mail::SPF::Mech::A - SPF record a mechanism class

An object of class Mail::SPF::Mech::A represents an SPF record mechanism of type a.
The following constructors are provided:
Creates a new SPF record a mechanism object.
%options is a list of key/value pairs representing any of the following options:
Creates a new SPF record a mechanism object by parsing the string and any options given.
The following class methods are provided:
Returns 'a'.
Returns a regular expression that matches a mechanism name of 'a'.
The following instance methods are provided:
Returns the domain-spec parameter of the mechanism.
Returns the IPv4 network prefix length of the mechanism.
Returns the IPv6 network prefix length of the mechanism.
Checks whether the mechanism's target domain name (that is,
any of its DNS A or AAAA host addresses) matches the given request's IP address (see "ip_address" in Mail::SPF::Request),
and returns true if it does,
or false otherwise.
The mechanism's IP network prefix lengths are respected when matching address records against the request's IP address.
See RFC 4408,
5,
for the exact algorithm used.

Mail::SPF, Mail::SPF::Record, Mail::SPF::Term, Mail::SPF::Mech
http://www.ietf.org/rfc/rfc4408.txt
For availability, support, and license information, see the README file included with Mail::SPF.

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