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| -rw-r--r-- | docs/examples/smtp-vrfy.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/docs/examples/smtp-vrfy.c b/docs/examples/smtp-vrfy.c new file mode 100644 index 000000000..c517b7aea --- /dev/null +++ b/docs/examples/smtp-vrfy.c @@ -0,0 +1,74 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2013, 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 verify an email address from an + * SMTP server. + * + * Notes: + * + * 1) That this example requires libcurl v7.34.0 or above. + * 2) Not all email servers support this command and even if your email server + * does support it, it may respond with a 252 response code even though the + * address doesn't exist. + */ + +int main(void) +{ + CURL *curl; + CURLcode res; + struct curl_slist *recipients = NULL; + + curl = curl_easy_init(); + if(curl) { + /* This is the URL for your mailserver - you can also use an smtps:// URL + * here */ + curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.net"); + + /* Note that the CURLOPT_MAIL_RCPT takes a list, not a char array */ + recipients = curl_slist_append(recipients, "<recipient@example.com>"); + curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients); + + /* Perform the VRFY */ + 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 requests. 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; +} |