    # 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