esmtp邮件服务器源码库，用于linux/unix。有简单的调用例子。-lasdf asd asdf ewof ew FEWFas sadfkedf asdf asdfsf e wfewpoimp jioj

linux系统下实现smtp简单邮件传输协议的邮件发送接收客户端和服务器-linux system to achieve smtp Simple Mail Transfer Protocol sending and receiving e-mail client and server