If you're reading a message with several recipients, you can use Reply to All instead of Reply. If there are large numbers of people in the Cc: or To: fields, this can save substantial amounts of time.
Irakurtzen ari zaren mezuak hainbat hartzaile baditu, 'Erantzun denei' ere erabil dezakezu. Cc: edo Nori: eremuetan helbide asko badaude, denei batera erantzunda denbora asko aurreratuko duzu.