Dear Members,

In case of relay server without authentication . I am getting error at
following location.

     lib/smtp.c - function smtp_perform_authentication()
     infof(conn->data, "No known authentication mechanisms supported!\n");
     result = CURLE_LOGIN_DENIED;

This occured when I have supplied dummy username and password with
curl_easy_setopt(curl, CURLOPT_USERPWD, userpasswordstring). (code works
fine without setting this, but I require this dummy user/password )

SMTP Server properties

- No Authentication
- NO TLS/SSL

So to bypass authentication I have modified - >lib/smtp.c - function
smtp_perform_authentication()

=============================================
Old Code
     infof(conn->data, "No known authentication mechanisms supported!\n");
      result = CURLE_LOGIN_DENIED;
==============================================
Modified Code
   infof(conn->data, "Bypass Authentication. Try Anyway\n");
   state(conn, SMTP_STOP);
   result = CURLE_OK;
===============================================

Now it works fine. I have doubt regarding side effect of this change.

Please give your inputs.

Thanks and Regards
Tom

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Received on 2014-03-24