using System.Net.Mail;
 
                MailMessage msgMail = null;                
                MailAddress objMAddTo,objMAddFrom = null;
                SmtpClient objSMTP = new SmtpClient();
                objSMTP.Host = ""; // set your SMTP mail server.. domainname or the IP
 
                     objMAddTo = new MailAddress("admin@test.com"); //Admin details
                     objMAddFrom = new MailAddress("user@test.com", "User"); // sender details
                     msgMail = new MailMessage(objMAddFrom, objMAddTo);
                    msgMail.IsBodyHtml = true; // if your Body contains HTML tags
                    msgMail.Subject = "Report Fault Error";
                    msgMail.Body = "Hi Admin,  Error Reporting here"; //your complete email body contents here
                    objSMTP.Send(msgMail);