C++发邮件简单实例详解

#include   
#include   
#include  //适用平台 Windows 
using namespace std; 
#pragma comment(lib, "ws2_32.lib") /*链接ws2_32.lib动态链接库*/  
 
int main() 
{ 
 char buff[500]; //recv函数返回的结果 
 string message; 
 
 WSADATA wsaData; 
 WORD wVersiOnRequested= MAKEWORD(2, 1); 
 //WSAStarup，即WSA(Windows SocKNDs Asynchronous，Windows套接字异步)的启动命令 
 int err = WSAStartup(wVersionRequested, &wsaData); 
 cout <<"WSAStartup:" <h_addr_list[0]); //得到smtp服务器的网络字节序的ip地址   
 addrServer.sin_family = AF_INET; 
 addrServer.sin_port = htons(25); //连接端口25  
 //int connect (SOCKET s , const struct sockaddr FAR *name , int namelen ); //函数原型 
 err = connect(sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR)); //向服务器发送请求  
 cout <<"connect:" <