Use the SMTP server that needs to verify the user to send emails
Occasionally, I think it is still useful to some people ....
Using system. Web. mail;
Private void page_load (Object sender, system. eventargs E)
{
Mailmessage mail = new mailmessage ();
Mail. To = "me@mycompany.com ";
Mail. From = "you@yourcompany.com ";
Mail. Subject = "this is a test email .";
Mail. Body = "some text goes here ";
Mail. Fields. Add ("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1"); // Basic Authentication
Mail. Fields. Add ("http://schemas.microsoft.com/cdo/configuration/sendusername", "my_username_here"); // set your username here
Mail. Fields. Add ("http://schemas.microsoft.com/cdo/configuration/sendpassword", "super_secret"); // set your password here
Smtpmail. smtpserver = "mail.mycompany.com"; // your real server goes here
Smtpmail. Send (Mail );
}