milter()
  Milter support service.
  
  This service can be used to start sagator as milter filter.
  
  Usage: milter(scanners, name, connection, umask)
  
  Where: scanners is an array of scanners (see README.scanners for more info)
         name is an string, milter service name
         connection in an string, which defines, where should milter service
           listen
         umask is an integer, which defines which umask should be set before
           creating local socket
  
  Example: milter(SCANNERS, "sagator", "inet:3333@127.0.0.1")
  
  For more information about milter's parameters see milter documentation.
  
  You need python's milter module to run this service:
    http://www.bmsi.com/python/milter.html