This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com. https://www.wsj.com/articles/SB10001424052970203803904574431151489408372
![The End of the Email Era](https://cdn-ak-scissors.b.st-hatena.com/image/square/370f8521fce0e8c7d5212de69574e2350ad40d73/height=288;version=1;width=512/https%3A%2F%2Fs.wsj.net%2Fpublic%2Fresources%2Fimages%2FTE-AA822A_EMAIL_F_20091008202711.jpg)