使用libcurl的SMTP邮件 [英] SMTP mail using libcurl

问题描述

我编译的C例子中附带的libcurl。结果
源文件是 SMTP-tls.c 结果
试图用它通过Gmail来发送邮件，这是我得到结果的响应

  

  
• 关于以（）连接到smtp.gmail.com端口465（＃0）

  
• 试图74.125.115.109 ... *连接

  

• 使用基本与用户的[e-mail]服务器授权

  
    
    

  
      

  GET / HTTP / 1.1授权：基本xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx主持人：smtp.gmail.com:465
      接受： / 的

  
    


  

• 从服务器空回复


  
• 连接＃0主办smtp.gmail.com原封不动

  
• 服务器返回什么（无头，无数据）

  
• 关闭连接＃0
    结果

  

我错过了什么？我没有修改code，除了在可变投入任何方式。在这个机器上我能够发送和接收使用电子邮件Outlook 2003的结果
编辑结果
尝试了不同的端口。这是结果结果

  

  
• 关于以（）连接到smtp.gmail.com端口587（＃0）

  
• 试图74.125.93.109 ... *连接

  
• 使用基本与用户的服务器认证[e-mail]
    

  
      

  GET / HTTP / 1.1授权：基本xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx主持人：smtp.gmail.com:587
      接受： / 的


    

  
  

220 mx.google.com ESMTP ew54y2x5of95qdz.12 502 5.5.1无法识别
    命令。 ew54y2x5of95qdz.12
    *连接＃0主办smtp.gmail.com保持不变
    *关闭连接＃0结果

  

修改结果
主要是这样的结果。

  INT的main（）
{
 卷曲*卷曲;
  卷曲code资源;
  结构curl_slist *收件人= NULL;
  结构upload_status upload_ctx;  upload_ctx.lines_read = 0;  卷曲= curl_easy_init（）;
  如果（卷曲）{
    curl_easy_setopt（卷曲，CURLOPT_URL，SMTP：//gmail.com：587）;
    curl_easy_setopt（卷曲，CURLOPT_USE_SSL，CURLUSESSL_ALL）;
    curl_easy_setopt（卷曲，CURLOPT_USERNAME，[e-mail]）;
    curl_easy_setopt（卷曲，CURLOPT_PASSWORD，XXXXXXXX）;
    curl_easy_setopt（卷曲，CURLOPT_MAIL_FROM，FROM）;
    收件人= curl_slist_append（受助人）;
    收件人= curl_slist_append（收件人，CC）;
    curl_easy_setopt（卷曲，CURLOPT_MAIL_RCPT，收件人）;
    curl_easy_setopt（卷曲，CURLOPT_READFUNCTION，payload_source）;
    curl_easy_setopt（卷曲，CURLOPT_READDATA，＆安培; upload_ctx）;
    curl_easy_setopt（卷曲，CURLOPT_VERBOSE，1）;
    RES = curl_easy_perform（卷曲）;
    curl_slist_free_all（收件人）;
    curl_easy_cleanup（卷曲）;
  }
  返回0;
}
 

结果编辑结果
貌似正确的网址应该是 SMTP：//smtp.gmail.com：587 结果
这让我进一步，现在我得到结果。

  *关于为（）连接到smtp.gmail.com端口587（＃0）
*尝试74.125.45.108 ... *连接
＆LT; 220 mx.google.com ESMTP j26srtuiopnann.7
＆GT; EHLO my_computer_name
＆LT; 250-mx.google.com为您服务，
＆LT; 250-SIZE 35882577
＆LT; 250-8BITMIME
＆LT; 250-STARTTLS
＆LT; 250 ENHANCEDSTATUS codeS
*无已知的验证机制的支持！
＆GT;放弃
＆LT; 221 2.0.0收盘连接j26srtuiopnann.7
*关闭连接＃0
*拒绝登录
 

结果编辑结果
的libcurl不支持SSL的内置

解决方案

第一输出有看起来像你喂libcurl的一个HTTP URL。

使用您的编辑问题，现在的问题变成完全不同的东西。现在，而不是看起来像你也许不具备在建的libcurl启用了SSL？

I compiled the c example the ships with libcurl.
The source file is smtp-tls.c
Tried to use it to send mail through gmail and this is the response that I got

• About to connect() to smtp.gmail.com port 465 (#0)
• Trying 74.125.115.109... * connected

• Server auth using Basic with user '[e-mail]'

  GET / HTTP/1.1 Authorization: Basic xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Host: smtp.gmail.com:465 Accept: /

• Empty reply from server

• Connection #0 to host smtp.gmail.com left intact
• Server returned nothing (no headers, no data)
• Closing connection #0
  

What did I miss? I did not modify the code in any way except for the variable inputs. On this machine I am able to send and receive mail using Outlook 2003.
EDIT
Tried a different port. This is the result

• About to connect() to smtp.gmail.com port 587 (#0)
• Trying 74.125.93.109... * connected
• Server auth using Basic with user '[e-mail]'

  GET / HTTP/1.1 Authorization: Basic xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Host: smtp.gmail.com:587 Accept: /

220 mx.google.com ESMTP ew54y2x5of95qdz.12 502 5.5.1 Unrecognized command. ew54y2x5of95qdz.12 * Connection #0 to host smtp.gmail.com left intact * Closing connection #0

EDIT
Main looks like this

int main()
{
 CURL *curl;
  CURLcode res;
  struct curl_slist *recipients = NULL;
  struct upload_status upload_ctx;

  upload_ctx.lines_read = 0;

  curl = curl_easy_init();
  if (curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "smtp://gmail.com:587");
    curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);
    curl_easy_setopt(curl, CURLOPT_USERNAME, "[e-mail]");
    curl_easy_setopt(curl, CURLOPT_PASSWORD, "xxxxxxxx");
    curl_easy_setopt(curl, CURLOPT_MAIL_FROM, FROM);
    recipients = curl_slist_append(recipients, TO);
    recipients = curl_slist_append(recipients, CC);
    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_VERBOSE, 1);
    res = curl_easy_perform(curl);
    curl_slist_free_all(recipients);
    curl_easy_cleanup(curl);
  }
  return 0;
}

EDIT
Looks like the correct URL should be smtp://smtp.gmail.com:587
This gets me further, now I am getting

* About to connect() to smtp.gmail.com port 587 (#0)
*   Trying 74.125.45.108... * connected
< 220 mx.google.com ESMTP j26srtuiopnann.7
> EHLO my_computer_name
< 250-mx.google.com at your service, 
< 250-SIZE 35882577
< 250-8BITMIME
< 250-STARTTLS
< 250 ENHANCEDSTATUSCODES
* No known auth mechanisms supported!
> QUIT
< 221 2.0.0 closing connection j26srtuiopnann.7
* Closing connection #0
* Login denied

EDIT
Libcurl was not built with SSL support

解决方案

The first output there looks like you're feeding libcurl a HTTP URL.

With your edited question the problem now turned into something completely different. Now it rather looks like you perhaps don't have SSL enabled in your built libcurl?

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