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SMTP Libcurl

Hi ,

Libcurl is a utility tool which we can also send e-mails using SMTP library. Below is a sample program which helps you to do the same from Linux-C Language.

Below is the program

#include <stdio.h>

#include <string.h>

#include <curl/curl.h>

int main(void)


  CURL *curl;

  CURLcode res;


  struct curl_slist *recipients = NULL;

  static const char *from = "********";

  static const char *to = "********";


  curl = curl_easy_init();

  if(curl) {

    curl_easy_setopt(curl, CURLOPT_URL, "smtp://");

    curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);

    curl_easy_setopt(curl, CURLOPT_USERNAME, "");

    curl_easy_setopt(curl, CURLOPT_PASSWORD, "*********");

    curl_easy_setopt(curl, CURLOPT_MAIL_FROM, from);

    recipients = curl_slist_append(recipients, to);

    curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);

    curl_easy_setopt(curl, CURLOPT_READDATA, FP);

    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);

    res = curl_easy_perform(curl);

    if(res != CURLE_OK)

      fprintf(stderr, "curl_easy_perform() failed: %s\n",curl_easy_strerror(res));




  return 0;


File "/tmp/Email"
[root@localhost ~]# more /tmp/Email  Date: Mon, 29 Nov 2010 21:54:29 +1100, To: ***************@gmail, From: **********, Subject: Sample message, Content-Type: text/html; charset="us-ascii" Hi , How do you do. <b> Any html code  </b>
How to Run
[root@localhost ~]# gcc -o test test.c -lcurl;./test * Connection #0 to host left intact > QUIT < 221 2.0.0 closing connection j9sm2235533pav.15 * Closing connection #0 [root@localhost ~]# 
దినేష్ కుమార్ 
Dinesh Kumar


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