translation.en: What you are sending, in many ways, is actually a postcard, and it's a postcard in the sense that everybody that sees it from the time it leaves your computer to when it gets to the recipient can actually read the entire contents.
translation.zh: 某种意义上，更像是寄明信片， 因为从电邮离开你电脑的那一刻， 到收件人收到电邮的那一刻， 这其中能看到这封邮件的人， 能够浏览邮件的所有内容。