cURL

curl's project page on SourceForge.net

Sponsors:
Haxx

cURL > libcurl > API > Example Source Codes > smtp-send.c

smtp-send.c

All Examples

10-at-a-time
anyauthput
asiohiper (C++)
cacertinmem
certinfo
chkspeed
cookie_interface
curlgtk
curlx
debug
evhiperfifo
externalsocket
fileupload
fopen
ftp-wildcard
ftpget
ftpgetinfo
ftpgetresp
ftpsget
ftpupload
ftpuploadresume
getinfo
getinmemory
ghiper
hiperfifo
href_extractor
htmltidy
htmltitle (C++)
http-post
httpcustomheader
httpput
https
imap-append
imap-copy
imap-create
imap-delete
imap-examine
imap-fetch
imap-list
imap-noop
imap-search
imap-ssl
imap-store
imap-tls
multi-app
multi-debugcallback
multi-double
multi-post
multi-single
multi-uv
multithread
opensslthreadlock
persistant
pop3-dele
pop3-list
pop3-noop
pop3-retr
pop3-ssl
pop3-stat
pop3-tls
pop3-top
pop3-uidl
post-callback
postinmemory
postit2
progressfunc
resolve
rtsp
sampleconv
sendrecv
sepheaders
sessioninfo
sftpget
simple
simplepost
simplessl
smooth-gtk-thread
smtp-expn
smtp-multi
smtp-send
smtp-ssl
smtp-tls
smtp-vrfy
synctime
threaded-ssl
url2file
usercertinmem
xmlstream

Download smtp-send.c

/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at http://curl.haxx.se/docs/copyright.html.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ***************************************************************************/ 
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
 
/* This is a simple example showing how to send mail using libcurl's SMTP
 * capabilities. For an exmaple of using the multi interface please see
 * smtp-multi.c.
 */ 
 
int main(void)
{
  CURL *curl;
  CURLcode res;
  struct curl_slist *recipients = NULL;
 
  /* value for envelope reverse-path */ 
  static const char *from = "<bradh@example.com>";
 
  /* this becomes the envelope forward-path */ 
  static const char *to = "<bradh@example.net>";
 
  curl = curl_easy_init();
  if(curl) {
    /* This is the URL for your mailserver */ 
    curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.com");
 
    /* Note that this option isn't strictly required, omitting it will result in
     * libcurl will sent the MAIL FROM command with no sender data. All
     * autoresponses should have an empty reverse-path, and should be directed
     * to the address in the reverse-path which triggered them. Otherwise, they
     * could cause an endless loop. See RFC 5321 Section 4.5.5 for more details.
     */ 
    curl_easy_setopt(curl, CURLOPT_MAIL_FROM, from);
 
    /* Note that the CURLOPT_MAIL_RCPT takes a list, not a char array.  */ 
    recipients = curl_slist_append(recipients, to);
    curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);
 
    /* You provide the payload (headers and the body of the message) as the
     * "data" element. There are two choices, either:
     * - provide a callback function and specify the function name using the
     * CURLOPT_READFUNCTION option; or
     * - just provide a FILE pointer that can be used to read the data from.
     * The easiest case is just to read from standard input, (which is available
     * as a FILE pointer) as shown here.
     */ 
    curl_easy_setopt(curl, CURLOPT_READDATA, stdin);
    curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
 
    /* send the message (including headers) */ 
    res = curl_easy_perform(curl);
 
    /* Check for errors */ 
    if(res != CURLE_OK)
      fprintf(stderr, "curl_easy_perform() failed: %s\n",
              curl_easy_strerror(res));
 
    /* free the list of recipients */ 
    curl_slist_free_all(recipients);
 
    /* curl won't send the QUIT command until you call cleanup, so you should be
     * able to re-use this connection for additional messages (setting
     * CURLOPT_MAIL_FROM and CURLOPT_MAIL_RCPT as required, and calling
     * curl_easy_perform() again. It may not be a good idea to keep the
     * connection open for a very long time though (more than a few minutes may
     * result in the server timing out the connection), and you do want to clean
     * up in the end.
     */ 
    curl_easy_cleanup(curl);
  }
 
  return 0;
}

You'll also find all examples in the distribution archive, in the docs/examples directory.

donate! Page updated January 05, 2014.
web site info

File upload with ASP.NET