发送到带有联系表格 asp.net 的电子邮件

我如何使用 ASP.NET 中的联系表单向指定的电子邮件地址发送电子邮件？该网站通过托管公司托管。谢谢

MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("your.mail.server");

mail.From = new MailAddress("[email protected] /cdn-cgi/l/email-protection");
mail.To.Add("[email protected] /cdn-cgi/l/email-protection");
mail.Subject = "Test Mail";
mail.Body = "This is for testing SMTP mail";

SmtpServer.Credentials = new System.Net.NetworkCredential("username", "password");

SmtpServer.Send(mail);