SmptClient is not working...

Question

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STARTTLS command first. 21sm5152578pzk.3
System.Net.Mail.MailMessage mymail = new System.Net.Mail.MailMessage("fromAddress", "Toaddress");
            mymail.Body = "message body";
            mymail.Subject = "message subject";
            System.Net.Mail.SmtpClient mysmtpclient = new System.Net.Mail.SmtpClient("smtp.gmail.com.",587);
            mysmtpclient.EnableSSL= true;
            mysmtpclient.UseDefaultCredentials = false;
            mysmtpclient.Credentials = new System.Net.NetworkCredential("gmail id", "gmail password");

            mysmtpclient.Send(mm);
I got the exception
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STARTTLS command first. 21sm5152578pzk.3
            Even i had changed the port number to 465, it wont work. But using chilkat smtpclient it is working. How can i overcome this? Please help me!

Nilanka Dharmadasa · Answer

Hi kannan This is a working code. Try this. Make sure to give the whole gmail address without giving only the id part. System.Net.Mail.SmtpClient smtpConnection; smtpConnection = new System.Net.Mail.SmtpClient(smtp.gmail.com); smtpConnection.Port = 587;//The port smtpConnection.UseDefaultCredentials = false; smtpConnection.EnableSsl = true; smtpConnection.Credentials = new System.Net.NetworkCredential(mygmailid@gmail.com gamilpassword);//Username and password to access mail server System.Net.Mail.MailMessage message = new System.Net.Mail.MailMessage(); message.To.Add(abcd@xyz.com); message.Subject = mail subject; message.From = new System.Net.Mail.MailAddress(mygmailid@gmail.com);//Give your from e mail address here message.Body = this is mail body; smtpConnection.Send(message); If you find this answer helpful please check 'Do you like this answer' checkbox.

kannan · Answer

Wow! you are right. I miss @gmail.com. Thaks for saving my life...