i was using smptclient instead of smtpserver final got it with little tweaks.. thanku guys for giving suggestions :)
const string SERVER = "serverHosting name";
System.Web.Mail.MailMessage oMail = new System.Web.Mail.MailMessage();
oMail.From = "emailname@yourdomain";
oMail.To = MailTo;
oMail.Cc = MailCC;
oMail.Subject = MailSubject;
oMail.BodyFormat = MailFormat.Html;
oMail.Priority = MailPriority.High;
oMail.Body = MailBody;
SmtpMail.SmtpServer = SERVER;
SmtpMail.Send(oMail);
oMail = null;