NAME
        RT::Interface::Email::RequiredHeaders - only accept new tickets via email with a certain header

SYNOPSIS
        Used to enforce ticket-creation from a web-interface.
        Doesn't accept new emails to the support queue without a special header.

INSTALL
        # etc/RT_SiteConfig.pm
        # Note: Must come before Filter::TakeAction in MailPlugins (if present)

        Set(@Plugins,(qw/
            RT::Interface::Email::RequiredHeaders
        /));
        Set(@MailPlugins, (qw/
            Auth::MailFrom
            RequiredHeaders
        /));
        Set(%Plugin_RequiredHeaders, (
            "required"  => [qw/X-RT-RequiredHeader/], # required is always required
            # "queues"  => [qw/General/],             # defaults to all queues
            # # change default rejection message:
            # "message" => "Error: You can only submit issues via the web.",
       ));

AUTHOR
        Alister West - http://alisterwest.com/

LICENCE AND COPYRIGHT
        Copyright 2013, Alister West

        This module is free software; you can redistribute it and/or
        modify it under the same terms as Perl. See http://dev.perl.org/licenses/.

CHANGES
    1.2 - 2013-06-03 - CPAN-ified
    1.1 - 2013-06-03 - GitHub-ified
    1.0 - 2013-05-30 - Initial working plugin

GetCurrentUser - RT MailPlugin Callback
        Returns: ($CurrentUser, $auth_level) - not-triggered passthough inputs.
        Returns: ($CurrentUser, -1 )         - halt further processing and send rejection notice.

        See RT::Interface::Email::GetAuthenticationLevel for more on $auth_level.

