Почему нет подключения к smtps://bk.ru

Я использую библиотеку curl для отправки mail сообщения вот код

#include <stdio.h>
#include <string.h>
#include <curl/curl.h>

#define FROM_MAIL     "<[email protected]>"
#define TO_MAIL       "<[email protected]>"
#define CC_MAIL       "<[email protected]>"
 
static const char *payload_text =
  "Date: Mon, 29 Nov 2010 21:54:29 +1100\r\n"
  "To: " TO_MAIL "\r\n"
  "From: " FROM_MAIL "\r\n"
  "Cc: " CC_MAIL "\r\n"
  "Message-ID: <dcd7cb36-11db-487a-9f3a-e652a9458efd@"
  "rfcpedant.example.org>\r\n"
  "Subject: SMTP example message\r\n"
  "\r\n" /* empty line to divide headers from body, see RFC5322 */
  "The body of the message starts here.\r\n"
  "\r\n"
  "It could be a lot of lines, could be MIME encoded, whatever.\r\n"
  "Check RFC5322.\r\n";
 
struct upload_status {
  size_t bytes_read;
};
 
static size_t payload_source(char *ptr, size_t size, size_t nmemb, void *userp)
{
  struct upload_status *upload_ctx = (struct upload_status *)userp;
  const char *data;
  size_t room = size * nmemb;
 
  if((size == 0) || (nmemb == 0) || ((size*nmemb) < 1)) {
    return 0;
  }
 
  data = &payload_text[upload_ctx->bytes_read];
 
  if(data) {
    size_t len = strlen(data);
    if(room < len)
      len = room;
    memcpy(ptr, data, len);
    upload_ctx->bytes_read += len;
 
    return len;
  }
 
  return 0;
}
 
int main(void)
{
  CURL *curl;
  CURLcode res = CURLE_OK;
  struct curl_slist *recipients = NULL;
  struct upload_status upload_ctx = { 0 };
 
  curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_USERNAME, "myusername");
    curl_easy_setopt(curl, CURLOPT_PASSWORD, "mypassword");
 
    curl_easy_setopt(curl, CURLOPT_URL, "smtps://bk.ru");
#ifdef SKIP_PEER_VERIFICATION
    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
#endif
 
#ifdef SKIP_HOSTNAME_VERIFICATION
    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
#endif
 
    curl_easy_setopt(curl, CURLOPT_MAIL_FROM, FROM_MAIL);
 
    recipients = curl_slist_append(recipients, TO_MAIL);
    recipients = curl_slist_append(recipients, CC_MAIL);
    curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);
 
    curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);
    curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);
    curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
 
    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 
    res = curl_easy_perform(curl);
 
    if(res != CURLE_OK)
      fprintf(stderr, "curl_easy_perform() failed: %s\n",
              curl_easy_strerror(res));
 
    curl_slist_free_all(recipients);
 
    curl_easy_cleanup(curl);
  }
 
  return (int)res;
}

Взял отсюда https://curl.se/libcurl/c/smtp-ssl.html. Но когда я запускаю код у меня вывод в консоли следующее.

*   Trying 217.69.141.182:465...
* connect to 217.69.141.182 port 465 failed: Timed out
*   Trying 217.69.141.182:465...
* connect to 217.69.141.182 port 465 failed: Timed out
* Failed to connect to bk.ru port 465 after 42060 ms: Timed out
* Closing connection 0
curl_easy_perform() failed: Timeout was reached

Вопрос что я ввёл не так? и доп. вопрос что нужно вводить в CC_MAIL?