NAME
   What - Find out about running services

SYNOPSIS
     $what = What->new(
                Host => my.domain.org,
                Port => 28,
             );

     $what->mta;
     $what->mta_version;
     $what->mta_banner;

DESCRIPTION
   The What class is interface to classes providing information about
   running services. What::MTA is the only implementation so far.

What::MTA
   MTA's supported are: Exim, Postfix (version only on localhost),
   Sendmail, Courier (name only), XMail, MasqMail.

   See What::MTA for details.

 METHODS
   new
         $obj = What->new( Host => "10.10.10.1", Port => 25 )

   mta()
       Returns the name of the MTA running.

   mta_banner()
       Returns the banner message.

   mta_version()
       Returns the MTA version.

AUTHOR
   Toni Prug <[email protected]>

COPYRIGHT
   Copyright (c) 2006. Toni Prug. All rights reserved.

   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the
   Free Software Foundation; either version 2 of the License, or (at your
   option) any later version.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
   Public License for more details.

   You should have received a copy of the GNU General Public License along
   with this program; if not, write to the Free Software Foundation, Inc.,
   59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

   See <http://www.gnu.org/licenses/gpl.html>