def acuseon opts={}
      wait      =!(opts[:nowait]  || false)
      lang      =  opts[:lang]    || false
      cert      =  opts[:cert]    || false
      email     =  opts[:email]   || 'INTERNAL'

      cmd_acuseon lang, cert ? 'D' : false, email

      return false unless wait_for(last_label) if wait
      true
    end
def acuseon opts={}
      wait      =!(opts[:nowait]  || false)
      lang      =  opts[:lang]    || false
      cert      =  opts[:cert]    || false
      email     =  opts[:email]   || 'INTERNAL'

      cmd_acuseon lang, cert ? 'D' : false, email

      return false unless wait_for(last_label) if wait
      true
    end
*opts*
   - nowait: (default false) no wait for response
   - cert: true/false (default false) use certificated confirmations
   - lang
       * :es Spanish (default)
       * :ca Catalan
       * :en English
       * :fr French
       * :de German
       * :it Italian
       * :nl Dutch
       * :pt Portuguese
       * :pl Polish
       * :se Swedish