Hello
When I use smtp to send mail, there will be following the situation, before the use of no such situation, I think that not sending HELO to continue to the other¡£
This is the code I write, is there a mistake?

        curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
        curl_easy_setopt(curl, CURLOPT_HEADER, 1L);
        curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);
        curl_easy_setopt(curl, CURLOPT_URL, "smtp.gmail.com");
        curl_easy_setopt(curl, CURLOPT_PORT, 25);

        curl_easy_setopt(curl, CURLOPT_MAIL_FROM, "<********@gmail.com>");

        slist = curl_slist_append(slist, "<*******@gmail.com>");
        curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, slist);

        curl_easy_setopt(curl, CURLOPT_USERNAME, "*******");
        curl_easy_setopt(curl, CURLOPT_PASSWORD, "********");
        curl_easy_setopt(curl, CURLOPT_READDATA, fp);
        curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_data);

* About to connect() to smtp.gmail.com port 25 (#0)
* Trying 74.125.127.109... * connected
* Connected to smtp.gmail.com (74.125.127.109) port 25 (#0)
* Server auth using Basic with user 'mulh0117'
> GET / HTTP/1.1
Authorization: Basic bXVsaDAxMTc6bWxoNjMzMDMwMA==
Host: smtp.gmail.com:25
Accept: */*

220 mx.google.com ESMTP w5sm469947ybe.10
502 5.5.1 Unrecognized command. w5sm469947ybe.10
* Connection #0 to host smtp.gmail.com left intact
* Closing connection #0

--
 
      (Mu LinHai)
 

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Received on 2010-11-12