//strto:接收邮件邮箱;strSubject:邮件标题;strBody:邮件正文
public static bool SendSMTPEMail(string strto, string strSubject, string strBody)
{
string smtp = "smtp.163.com";
string name = "*******"; //用户名
string pwd = "******"; //密码
System.Net.Mail.SmtpClient client = new SmtpClient(smtp);
client.UseDefaultCredentials = false;
client.Credentials =
new System.Net.NetworkCredential(name, pwd);
client.DeliveryMethod = SmtpDeliveryMethod.Network;
System.Net.Mail.MailMessage message = new MailMessage(name, strto, strSubject, strBody);
message.BodyEncoding = System.Text.Encoding.UTF8;
message.IsBodyHtml = true;
client.Send(message);
return true;
}