error sending email using ASP.NET web app

问题

I'm trying to send email to my site users (ASP.NET, VS2010), currently I'm using my gmail account for sending email, but I'm getting the following error:

ex = {"Failure sending mail."}
InnerException = {"The remote name could not be resolved: 'smtp@gmail.com'"}

it is my code:

MailMessage mailObj = new MailMessage("mygmailaccount@gmail.com", "myyahooaccount@yahoo.com", "test", "test2");
            SmtpClient SMTPServer = new SmtpClient("smtp@gmail.com");
            SMTPServer.Credentials = new System.Net.NetworkCredential("mygmailaccount", mygmailpassword);
            try
            {
                SMTPServer.Send(mailObj);
            }
            catch (Exception ex)
            {
                string a = ex.Message;
            }

what is going wrong here? should I do something in my web.config? how can I find smtp server of my own host?

回答1:

smtp@gmail.com is incorrect. You probably meant smtp.gmail.com. See the following question for a complete example.

Sending email in .NET through Gmail

回答2:

you did not set gmail parameters correctly:

SmtpClient smtpClient = new SmtpClient("smtp.gmail.com", 587);
    smtpClient.EnableSsl = true;
    smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
    smtpClient.Credentials = new NetworkCredential("myGmailAcconut@gmail.com", "password");

来源：https://stackoverflow.com/questions/9313047/error-sending-email-using-asp-net-web-app