And a long story short, we never build our secureE-mail program.
长话短说，我们从没建立过电子邮件安全系统。
2
Then the paper puts emphasis on explaining the design of solution to secureE-mail transfer in goal, running model and whole solution.
然后，该文着重从设计目标、运行模型和整体解决方案等核心内容出发阐述了安全邮件解决方案的设计。
3
SecureE-mail: Viruses and other malicious software that might be hiding in your email can't break out of the sandbox and can't infect your real system.