smtp authentication

[JJHGH]

Hello, please  help me, when I use System_Net_Mail_SmtpClient_Send_1(smtpClient, message, NULL) ,I get always the -6571 error  and I don't understand  the problem 

[EnriqueOli]

I have the same problem System_Net_Mail_SmtpClient_Send return -6571 and does't work.

My code is:

Initialize_System ();

ret=System_Net_Mail_SmtpClient__Create_2 (&SmtpClient, "smtp.gmail.com", 587, 0);
ret=System_Net_Mail_SmtpClient_Set_EnableSsl(SmtpClient, 1, 0);
ret=System_Net_Mail_SmtpClient_Set_DeliveryMethod(SmtpClient, 0, 0);
ret=System_Net_Mail_SmtpClient_Set_Timeout(SmtpClient, 5000, NULL);
ret=System_Net_Mail_SmtpClient_Set_UseDefaultCredentials(SmtpClient, 0, 0);
ret=System_Net_NetworkCredential__Create_1(&NetworkCredential, "****from****@gmail.com", "*********", 0);
ret=System_Net_Mail_SmtpClient_Set_Credentials(SmtpClient,(System_Net_ICredentialsByHost)NetworkCredential, NULL);
ret=System_Net_Mail_SmtpClient_Send(SmtpClient, "****from****@gmail.com", "****to****@yahoo.com.ar", "Mail de prueba","Hola Mundo", NULL);

Close_System();

Please Help Me.

Regards

[EnriqueOli]

I was able to do it, i can send emails. The problem wasn't the code. The problem was that gmail blocked the access to the account. Google sent me an email to let me know that the account was blocked: 

Revisión de un intento de acceso bloqueado

I got this link in the email:

permite el acceso a apps menos seguras

When I set the access to "active" it began to work.

[cheec]

Hi Jimmy,

I am trying a similar application to send email via SMTP server. Would you be kind enough to share the project files so that I can try on my email?

Thank you 🙂