# File lib/vmail/imap_client.rb, line 381
    def more_messages(message_id, limit=100)
      log "more_messages: message_id #{message_id}"
      message_id = message_id.to_i
      if @all_search 
        x = [(message_id - limit), 0].max
        y = [message_id - 1, 0].max

        res = fetch_row_text((x..y))
        add_more_message_line(res, x)
      else # filter search query
        log "@start_index #@start_index"
        x = [(@start_index - limit), 0].max
        y = [@start_index - 1, 0].max
        @start_index = x
        res = fetch_row_text(@ids[x..y]) 
        add_more_message_line(res, @ids[x])
      end
    end