NAME

       Sisimai::Order - A Class for making an optimized order list for calling MTA modules in
       Sisimai::Lhost::*.

SYNOPSIS

           use Sisimai::Order

DESCRIPTION

       Sisimai::Order class 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,
       which MTA modules for JSON structure.

CLASS METHODS

   "by(STRING)"
       "by()" receives a pattern name string as the 1st argument and returns a table of MTA
       module. As of present, only "subject" is supported at the 1st argument.

           my $tab = Sisimai::Order->by('subject');

   "default()"
       "default()" returns a default order of MTA modules as an array reference. The default
       order is defined at Sisimai::Lhost->index method.

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

   "another()"
       "another()" returns another list of MTA modules as an array reference. Another list is
       defined at this class.

           print for @{ Sisimai::Order->another };

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

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

AUTHOR

       azumakuniyuki

COPYRIGHT

       Copyright (C) 2015-2017,2019 azumakuniyuki, All rights reserved.

LICENSE

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