NAME

       Sisimai::Order::Email - Make optimized order list for calling MTA modules

SYNOPSIS

           use Sisimai::Order::Email

DESCRIPTION

       Sisimai::Order::Email makes optimized order list which include MTA modules to be loaded on
       first from MTA specific headers in the bounce mail headers such as X-Failed-Recipients.
       This module are called from only Sisimai::Message::Email.

       This class was marked as obsoleted at v4.25.4 and will be removed at the future release of
       Sisimai.

CLASS METHODS

   "default()"
       "default()" returns default order of MTA modules

           print for @{ Sisimai::Order::Email->default };

   "headers()"
       "headers()" returns MTA specific header table

           print keys %{ Sisimai::Order::Email->headers };

AUTHOR

       azumakuniyuki

COPYRIGHT

       Copyright (C) 2015-2019 azumakuniyuki, All rights reserved.

LICENSE

       This software is distributed under The BSD 2-Clause License.