所有你需要的就是可以从任何计算机发送和接收电子邮件的一个US b驱动器，并且不需要安装任何软件。
All you need is a USB drive to receive and send email from any computer without the need to install any software.
可以使用这个提供者执行简单的测试安装，因为它不需要数据库或外部源等任何其他软件。
This provider can be used to serve simple test installs as it doesn't require any other software like databases or external sources.
你不需要支付任何费用，也无需注册或安装什么软件。
You don't pay anything, sign up for anything or install anything.
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