Use GMail to send emails

You can use GMail to send mail. It is said that G officially restricts the maximum number of contacts sent to a single email within one day. The Code is as follows:

Namespace ConsoleApplication9 {class Program {static void Main (string [] args) {var from = new MailAddress ("asdf@112.com", "cary "); var to = new MailAddress ("chenghui921@126.com", "toname"); var message = new MailMessage (from, to); message. subject = "The subject"; message. body = "The message body"; message. isBodyHtml = true; var host = "smtp.gmail.com"; var client = new SmtpClient (host, 587); client. enableSsl = true; client. credentials = new NetworkCredential ("<your username>", "<your password>"); client. send (message); Console. readLine ();}}}