如何在不泄露密码的情况下从C＃发送电子邮件？

Question

I found a great way to send email in C#, except for one problem, I have to show my password. If anyone were to disassemble my program, or if I decided to make it open source (which I probably will) they would get the username and password for my gmail account. Is there any way to get around this?

MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");

mail.From = new MailAddress("Contact@pandorafreed.com");
mail.To.Add("myemail@gmail.com");
mail.Subject = "Pandora Free-D Message";
mail.Body = "Name: " + C.NameBox.Text + "\n" + "Email: " + C.emailBox.Text + "\n" + C.Message.Text;

SmtpServer.Port = 587;
SmtpServer.Credentials = new System.Net.NetworkCredential("username", "password");
SmtpServer.EnableSsl = true;

SmtpServer.Send(mail);

+++++EDIT+++++

hmmm... would localhost work? Anyone know?

Answer 1

Not if your mail server requires authentication. The program will need to know the password to send mail, and if this program is operating on a computer you don't trust then you can assume the password will be quickly compromised.

You should consider an alternate method, like submitting the mail via a web service or HTTP call to a server under your control, where you can validate the message and then send it to the mail server.

Answer 2

您可以创建Web服务，它将向邮件服务器发送电子邮件。

Answer 3

Why would you have others using your account to send e-mail? Let the user use his/her own mailserver and authentication. Let the user enter those values when installing your program and store it in a configuration file.