很多公司被禁止访问网络，只能收发email。 当然公司这么做也有他的原因。
其实，只要能收发email，你可以访问互联网几乎所有的资源。
前几天搜索到的一篇指南：
Accessing the Internet by E-mail FAQ
可以通过邮件访问ftp,http,newsgroup 等等。。。
If you don't have direct access to the Internet through your BBS or online service, you're not alone. Many of the world's countries with Internet connections have only e-mail access to this world-wide network of networks.
