sm. sm(Simple Mail)即简单邮件，它是基于python3中的smtplib模块进行的二次开发，功能跟smtplib没什么区别，但是其将繁琐的信息封装过程变得简单化。

Problem

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Audience

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.