在网上找了很多群发邮件功能的资源，总有些不尽人如意，所以就自己用c#做了一个，支持群发、多附件添加、模板管理等。群发邮件地址需要从txt打开，格式为name,123@163.com-The Internet to find a lot of bulk mail features resources, the total wishful some different people, so they used to do a c#, support mass, add multiple attach