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POSMTP mail using libcurl
 

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    <p>I compiled the c example the ships with libcurl.<br> The source file is <code>smtp-tls.c</code><br> Tried to use it to send mail through gmail and this is the response that I got<br></p> <blockquote> <ul> <li>About to connect() to smtp.gmail.com port 465 (#0)</li> <li>Trying 74.125.115.109... * connected</li> <li><p>Server auth using Basic with user 'xxxxxxx@gmail.com'</p> <blockquote> <p>GET / HTTP/1.1 Authorization: Basic xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Host: smtp.gmail.com:465 Accept: <em>/</em></p> </blockquote></li> <li><p>Empty reply from server</p></li> <li>Connection #0 to host smtp.gmail.com left intact</li> <li>Server returned nothing (no headers, no data)</li> <li>Closing connection #0 <br></li> </ul> </blockquote> <p>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.<br> EDIT<br> Tried a different port. This is the result<br></p> <blockquote> <ul> <li>About to connect() to smtp.gmail.com port 587 (#0)</li> <li>Trying 74.125.93.109... * connected</li> <li>Server auth using Basic with user 'xxxxxxx@gmail.com' <blockquote> <p>GET / HTTP/1.1 Authorization: Basic xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Host: smtp.gmail.com:587 Accept: <em>/</em></li> </ul> <p>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<br></p> </blockquote></p> </blockquote> <p><strong>EDIT</strong><br> Main looks like this<br></p> <pre><code>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, "xxxxxx@gmail.com"); 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, &amp;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; } </code></pre> <p><br>EDIT<br> Looks like the correct URL should be <code>smtp://smtp.gmail.com:587</code><br> This gets me further, now I am getting<br></p> <pre><code>* About to connect() to smtp.gmail.com port 587 (#0) * Trying 74.125.45.108... * connected &lt; 220 mx.google.com ESMTP j26srtuiopnann.7 &gt; EHLO my_computer_name &lt; 250-mx.google.com at your service, &lt; 250-SIZE 35882577 &lt; 250-8BITMIME &lt; 250-STARTTLS &lt; 250 ENHANCEDSTATUSCODES * No known auth mechanisms supported! &gt; QUIT &lt; 221 2.0.0 closing connection j26srtuiopnann.7 * Closing connection #0 * Login denied </code></pre> <p><br>EDIT<br> Libcurl was not built with SSL support</p>
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