Sending Email

#include <iostream>
#include <winsock2.h>
#pragma comment(lib,"ws2_32.lib")

int main()
{
	// Initialise Winsock
	WSADATA WsaDat;
	if(WSAStartup(MAKEWORD(2,2),&WsaDat)!=0)
	{
		std::cout<<"Winsock error - Winsock initialization failed\r\n";
		WSACleanup();
		system("PAUSE");
		return 0;
	}
	
	// Create our socket
	SOCKET Socket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
	if(Socket==INVALID_SOCKET)
	{
		std::cout<<"Winsock error - Socket creation Failed!\r\n";
		WSACleanup();
		system("PAUSE");
		return 0;
	}

	// Resolve IP address for hostname
	struct hostent *host;
	if((host=gethostbyname("smtp.gmail.com"))==NULL)
	{
		std::cout<<"Failed to resolve hostname.\r\n";
		WSACleanup();
		system("PAUSE");
		return 0;
	}

	// Setup our socket address structure
	SOCKADDR_IN SockAddr;
	SockAddr.sin_port=htons(587);
	SockAddr.sin_family=AF_INET;
	SockAddr.sin_addr.s_addr=*((unsigned long*)host->h_addr);

	// Attempt to connect to server
	if(connect(Socket,(SOCKADDR*)(&SockAddr),sizeof(SockAddr))!=0)
	{
		std::cout<<"Failed to establish connection with server\r\n";
		WSACleanup();
		system("PAUSE");
		return 0;
	}

	// Display message from server
	char buffer[1000];
	memset(buffer,0,999);
	int inDataLength=recv(Socket,buffer,1000,0);
	std::cout<<buffer;


	sprintf(buffer, "HELO smtp.gmail.com\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "STARTTLS\r\n");
    send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "MAIL FROM:<****@gmail.com>\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "RCPT TO:<*****@gmail.com>\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "DATA\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "Subject:FIRST EMAIL WITH C++!\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "From: ****@gmail.com\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "To: *****@gmail.com\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "HELLO GOD\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "\r\n. \r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	sprintf(buffer, "QUIT\r\n");
	send(Socket, buffer, strlen(buffer), 0);
	recv(Socket, buffer, sizeof(buffer), 0);
	std::cout<<buffer;

	// Shutdown our socket
	shutdown(Socket,SD_SEND);

	// Close our socket entirely
	closesocket(Socket);

	// Cleanup Winsock
	WSACleanup();
	system("PAUSE");
	return 0;
}