Is there any way to send the Email notification using asp.net without using credentials?

Question

I have this code to send email notification in my page.

MailAddress to = new MailAddress("[email protected]"); 
MailAddress from = new MailAddress("[email protected]"); 
MailMessage message = new MailMessage(from, to); 
message.Subject = "Error Occred in the application:"; 
message.Body = ex.Message; 
SmtpClient client = new SmtpClient("smtp.gmail.com", 587); 
client.EnableSsl = true; 
client.Credentials = new NetworkCredential("user", "password"); 

Is there any other way we have without giving credentials to send the message?

Answer 1

Only on servers that allow anonymous sending, which Gmail doesn't.

Answer 2

There are some workarounds mentioned here

Answer 3

If you have an open mail relay that doesn't require credentials, then you don't need to supply them.