Whether you use a client application such as Microsoft Outlook, or a Web-based E-mail system like Google Gmail, you should minimize or close the E-mail window when you are not actively using it.

不管你是在使用像微软Outlook一样的客户端，还是使用像Google Gmail一样的网页邮件系统，在你不需要的时候，都应该最小化这些窗口或者关闭掉。

youdao

The user can search local hard drives, Web sites, e-mail, and other sources without having to minimize the current document or open a browser, e-mail client, or other application.

用户可以搜索本地磁盘、网站、电子邮件和其他的数据源，而不必缩小当前文件或打开浏览器、电邮客户端或其他应用程序。

youdao