Open source projects function almost wholly through e-mail (with the addition of the Apache bug tracking database, which you'll find in the Resources section).

开发源码项目几乎完全是通过电子邮件（再加上 Apache bug 跟踪数据库，在 参考资料 小节中有这方面的内容）来运作的。

youdao

It tells the user "thanks for your order" and sends e-mail with the package tracking number when the order ships.

它告知用户“谢谢订购”并且当订单传输的时候发送包含该包裹号码的电子邮件。

youdao

So project communications are mostly plain text, in E-mail, instant messaging, IRC, or a bug tracking system.

所以项目的交流经常通过文字：电子邮件、即时通讯消息、IRC、或者bug追踪系统。

youdao

"They all find out that you opened the mail and they get an invisible tracking number, so if you go to a store ... that number is reported to them and they can build that information into a database, " Catlett said.

CNN: Privacy groups ask FTC to close e-mail loophole

We continued to a backstage area where mail trucks shared space with production crews at banks of monitors tracking the party already under way, as well as Mr. Craig's progress.

WSJ: Setting Stages Fit for Bond

Audio Ads also enables advertisers to track when and where their ads ran soon after the fact, providing them with a faster and more accurate way of tracking their spots than the usual invoices they receive via snail mail.

FORBES