New Topic/Question
Reply
http://stackoverflow.../c-smtp-example
In that link, how to do it is outlined--at this point I just want to get this code to work before tailoring it to my own needs. I'm having a couple issues though. I can't find several of the libraries in the code. Specifically sys/socket.h netinet/in.h and netdb.h
Also, does anyone know how I would go about adding attachments and sending an HTML email? I need to automate some reports and what not. Internally, we have an API that uses VB to send emails through a service we use, but for some of our tests that doesn't work. There's a couple tables and other formatting things that are available via an HTML email. We have a program that generates the code/HTML file, we just need to send it with SMTP or a protocol that supports it. We're using microsoft exchange but the exchange protocol (MAPI) doesn't support HTML email.
#include<iostream>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
using namespace std;
#define HELO "HELO 192.168.1.1\r\n"
#define DATA "DATA\r\n"
#define QUIT "QUIT\r\n"
//#define h_addr h_addr_list[0]
//FILE *fin;
int sock;
struct sockaddr_in server;
struct hostent *hp, *gethostbyname();
char buf[BUFSIZ+1];
int len;
char *host_id="192.168.1.10";
char *from_id="[email protected]";
char *to_id="[email protected]";
char *sub="testmail\r\n";
char wkstr[100]="hello how r u\r\n";
/*=====Send a string to the socket=====*/
void send_socket(char *s)
{
write(sock,s,strlen(s));
write(1,s,strlen(s));
//printf("Client:%s\n",s);
}
//=====Read a string from the socket=====*/
void read_socket()
{
len = read(sock,buf,BUFSIZ);
write(1,buf,len);
//printf("Server:%s\n",buf);
}
/*=====MAIN=====*/
int main(int argc, char* argv[])
{
/*=====Create Socket=====*/
sock = socket(AF_INET, SOCK_STREAM, 0);
if (sock==-1)
{
perror("opening stream socket");
exit(1);
}
else
cout << "socket created\n";
/*=====Verify host=====*/
server.sin_family = AF_INET;
hp = gethostbyname(host_id);
if (hp==(struct hostent *) 0)
{
fprintf(stderr, "%s: unknown host\n", host_id);
exit(2);
}
/*=====Connect to port 25 on remote host=====*/
memcpy((char *) &server.sin_addr, (char *) hp->h_addr, hp->h_length);
server.sin_port=htons(25); /* SMTP PORT */
if (connect(sock, (struct sockaddr *) &server, sizeof server)==-1)
{
perror("connecting stream socket");
exit(1);
}
else
cout << "Connected\n";
/*=====Write some data then read some =====*/
read_socket(); /* SMTP Server logon string */
send_socket(HELO); /* introduce ourselves */
read_socket(); /*Read reply */
send_socket("MAIL FROM: ");
send_socket(from_id);
send_socket("\r\n");
read_socket(); /* Sender OK */
send_socket("VRFY ");
send_socket(from_id);
send_socket("\r\n");
read_socket(); // Sender OK */
send_socket("RCPT TO: "); /*Mail to*/
send_socket(to_id);
send_socket("\r\n");
read_socket(); // Recipient OK*/
send_socket(DATA);// body to follow*/
send_socket("Subject: ");
send_socket(sub);
read_socket(); // Recipient OK*/
send_socket(wkstr);
send_socket(".\r\n");
read_socket();
send_socket(QUIT); /* quit */
read_socket(); // log off */
//=====Close socket and finish=====*/
close(sock);
exit(0);
}
MultiQuote
| 