ASP.NET发送邮件

<system.net>
<mailSettings>
<smtp>
<network host="smtp.163.com" port="25" userName="SitesManage@163.com" password="******" />
</smtp>
</mailSettings>
</system.net>

MailMessage message = new MailMessage();

message.From = new MailAddress("SitesManage@163.com") ;                    //获取发送者邮箱地址
message.Subject = "seerwoo尚车网（www.seerwoo.com）";                        //获取主题
message.Body = “<font color='red'>这里是邮件的正文内容</font>”

message.IsBodyHtml = true;                                                                          //设置邮件内容格式是否为HTML格式
string str = dt.Rows[0]["Email"].ToString();                                                     //收件人邮箱地址
message.To.Add(str);
SmtpClient client = new SmtpClient();                                                            //简单邮件传输协议
client.Send(message);