Email με SMTP σε C

[nilosgr]

Γεια σας γραφω ενα προγραμματακι για να στελνει email με SMTP χρησημοποιώντας sockets (δεν ξερω αν γινεται κι αλλιως )

Ενω η συνδεση με το server γινεται κανονικα, κατα το authenticate περνω το εξης error:

"5.7.0 Must issue a STARTTLS command first"

Αυτό γινεται οταν βαζω τα στοιχεια απο το hotmail ή το gmail ή το yahoomail, εάν βαζω απο το otenet mail δουλευει κανονικα. (προφανως επειδη το otenet mail δεν εχει ενεργοποιημενο SSL / TLS)

Μπορει καποιος να με βοηθησει να το κανω να δουλευει και με servers που εχουν ενεργοποιημενο SSL / TLS;

Οι ρυθμησεις για hotmail, gmail, yahoomail, otenet mail.

Ο κώδικας:

>
#include <stdio.h>
#include <tchar.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>

#define HOST		"smtp.live.com"
#define USER		"[email protected]"
#define PASSWORD	"pass"
#define FROM		"[email protected]"
#define TO		"[email protected]"
#define SUBJECT		"junkies"
#define MESSAGE		"take the body"

int _tmain(int argc, _TCHAR* argv[])
{
       int iResult;
       WSADATA wsaData;
       int iProtocolPort;
       char pchMessage[4096]="";
       SOCKET hServer = INVALID_SOCKET;
       LPHOSTENT lpHostEntry;
       LPSERVENT lpServEntry;
       SOCKADDR_IN SockAddr;

       iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
       if (iResult) {
        printf("WSAStartup failed: %d\n", iResult);
       	system("pause");
        return 1;
       }

       if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2) {
               _tprintf(TEXT("Could not find a usable version of Winsock.dll\n"));
               WSACleanup();
        system("pause");
               return 2;
       }
       else
               printf("The Winsock 2.2 dll was found okay\n");

       lpHostEntry=gethostbyname(HOST);
       if(!lpHostEntry) {
        _tprintf(TEXT("gethostbyname failed: %d\n"), WSAGetLastError());
        WSACleanup();
        system("pause");
        return 3;
       }

       hServer = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
       if (hServer == INVALID_SOCKET) {
        _tprintf(TEXT("socket failed: %d\n"), WSAGetLastError());
        WSACleanup();
       	system("pause");
        return 4;
       }

lpServEntry=getservbyname("mail", NULL);
if(!lpServEntry) {
	_tprintf(TEXT("getservbyname failed: %d\n"), WSAGetLastError());
	iProtocolPort = htons(IPPORT_SMTP);
}
       else {
           iProtocolPort = lpServEntry->s_port;
   	}

       SockAddr.sin_family = AF_INET;
       SockAddr.sin_port = iProtocolPort;
       SockAddr.sin_addr = *((LPIN_ADDR) *lpHostEntry->h_addr_list);

       if (connect(hServer, (PSOCKADDR) &SockAddr, sizeof(SockAddr)) == SOCKET_ERROR) {
	_tprintf(TEXT("connect failed: %d\n"), WSAGetLastError());
	WSACleanup();
	closesocket(hServer);
	system("pause");
	return 5;
}
       iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("connect %s \n", pchMessage);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "ehlo\r\n");
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("ehlo %s %d \n", pchMessage, iResult);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "auth login\r\n");
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("auth %s %d (%d)\n", pchMessage, iResult, 334);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "%s\r\n", USER);
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("user %s %d (%d)\n", pchMessage, iResult, 334);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "%s\r\n", PASSWORD);
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("pass %s %d (%d)\n", pchMessage, iResult, 235);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "mail from:<%s>\r\n", FROM);
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("from %s %d (%d)\n", pchMessage, iResult, 250);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "rcpt to:<%s>\r\n", TO);
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("to %s %d (%d)\n", pchMessage, iResult, 250);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "DATA\r\n");
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("data %s %d (%d)\n", pchMessage, iResult, 250);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "Subject: %s\r\n\r\n%s\r\n.\r\n", SUBJECT, MESSAGE);
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage), 0);
printf("subj/mesg %s %d (%d)\n", pchMessage, iResult, 250);

ZeroMemory(pchMessage, sizeof(pchMessage));
sprintf(pchMessage, "quit\r\n");
send(hServer, pchMessage, strlen(pchMessage), 0);
iResult = recv(hServer, pchMessage, sizeof(pchMessage),0);
printf("quit %s %d (%d)\n", pchMessage, iResult, 250);

closesocket(hServer);
WSACleanup();
system("pause");
return 0;
}

[παπι]

Ψαξε msdn μπας και εχει τιποτα για SSL ή πας http://www.openssl.org/ ή δες να το κανεις μεσου http http://msdn.microsof...3(v=vs.85).aspx που εχει SSL

 

Ιδεα δεν εχω για το πως δουλευει το ssl, αλλα για να υπαρχει βιβλιοθηκη δεν θα ειναι και κατι απλο