SmtpClient smtpClient = new SmtpClient("mailserver ip", portno);//port no normally 25
MailMessage mailMsg= new MailMessage()
MailAddress mailFrom=new MailAddress("fromaddress");
MailAddress mailTo=new MailAddress("toaddress");
mailMsg.To.Add(mailTo);
mailMsg.From = mailFrom;
mailMsg.Body ="your mail msg";
mailMsg.Subject = "mailSubject";
mailMsg.IsBodyHtml = true;// to support html tags
smtpClient.Send(mailMsg);
your mail server must enabled to support send and receiving of mail
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