deliver_to()
  Interscanner to send emails to admins.
  
  This scanner can be used to send viruses/spams to an administrator.
  
  Usage: deliver_to(recipients,scanners)
     or: deliver_to(...).onlyif('string')
  
  Where: recipients is an array of recipients
         'string' is an string, which defines regular expression.
           If this expression is found in virus name, mail is
           delivered, otherwise don't.