mail发送问题

[cqnetboy]

......

MailMessage mailObj = new MailMessage();
mailObj.From = "[e-mail]";
mailObj.To = "[e-mail]";
mailObj.Subject = "title";
mailObj.Body = "body";
mailObj.Priority = MailPriority.High;
mailObj.Attachments.Add(new MailAttachment("c://chenhu2//chdhzcm.chh"));
SmtpMail.Send(mailObj);

......

报错说：“SendUsing”配置值无效。

[cnlamar]

gz

[cqnetboy]

堆栈跟踪:


[COMException (0x80040220): “SendUsing”配置值无效。
]

[TargetInvocationException: 调用的目标发生了异常。]
System.RuntimeType.InvokeDispMethod(String name, BindingFlags invokeAttr, Object target, Object[] args, Boolean[] byrefModifiers, Int32 culture, String[] namedParameters) +0
System.RuntimeType.InvokeMember(String name, BindingFlags invokeAttr, Binder binder, Object target, Object[] args, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParameters) +473
System.Web.Mail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) +58

[HttpException (0x80004005): 未能访问“CDO.Message”对象。]
System.Web.Mail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) +113
System.Web.Mail.CdoSysHelper.Send(MailMessage message) +1846
System.Web.Mail.SmtpMail.Send(MailMessage message) +153
J_Net_v2.SendMail.btSendMail_Click(Object sender, EventArgs e) in c:\documents and settings\netboy\vswebcache\netboy_tablepc_83\sendmail.aspx.cs:62
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +108
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +57
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain() +1277

[zhangzs8896]

MailMessage mailObj = new MailMessage();
mailObj.From = "[e-mail]";
mailObj.To = "[e-mail]";
mailObj.Subject = "title";
mailObj.Body = "body";
mailObj.Priority = MailPriority.High;
mailObj.Attachments.Add(new MailAttachment("c://chenhu2//chdhzcm.chh"));
SmtpMail.Send(mailObj);
-------------->
MailMessage mailObj = new MailMessage();
mailObj.From = "[e-mail]";
mailObj.To = "[e-mail]";
mailObj.Subject = "title";
mailObj.Body = "body";
mailObj.Priority = MailPriority.High;
mailObj.SmtpServer="邮件服务器"; //dns.junnet.com.cn?
SmtpMail.Send(mailObj);

[cqnetboy]

mailObj.SmtpServer="邮件服务器"; //dns.junnet.com.cn?
--------------->>
SendMail.aspx.cs(65): “System.Web.Mail.MailMessage”并不包含对“SmtpServer”的定义
????

[cqnetboy]

哪位能帮忙说说是怎么回事，如果有可以有的email发送代码可以给小弟一个。c#的,谢谢!!
[e-mail]

[zhangzs8896]

using System;
using System.Collections;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Web.Mail;//邮件使用
using System.Windows.Forms; //Messagebox使用；

namespace zzs_test
{
/// <summary>
/// Mail 的摘要说明。
/// </summary>
public class Mail : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox TextBox1;
protected System.Web.UI.WebControls.TextBox TextBox2;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.Label Label2;
protected System.Web.UI.WebControls.TextBox TextBox3;
protected System.Web.UI.WebControls.Label Label3;
protected System.Web.UI.WebControls.DropDownList sender_ddl;
protected System.Web.UI.WebControls.Label Label4;
protected System.Web.UI.WebControls.Button btn_send;

private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
// Response.Write("test： " +ConfigurationSettings.AppSettings["test"]);
// Response.End();
}

#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}

/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.btn_send.Click += new System.EventHandler(this.btn_send_Click);
this.Load += new System.EventHandler(this.Page_Load);

}
#endregion

private void btn_send_Click(object sender, System.EventArgs e)//发送
{
MailMessage Message=new MailMessage();
//Message.From="[e-mail]";
Message.From=sender_ddl.SelectedItem.Value+"@tpco.com.cn";
Message.To=TextBox1.Text;
Message.Subject=TextBox3.Text;
Message.Body=TextBox2.Text;
Message.BodyFormat=MailFormat.Text;
Message.Priority=MailPriority.Low;

string[] ServerPool = new string[2];
ServerPool[0]="dns.tpco.com.cn";
//ServerPool[1]="smtp.163.com";
SmtpMail.SmtpServer=ServerPool[0];
SmtpMail.Send(Message);

MessageBox.Show("成功发送到 "+ TextBox1.Text, "C#邮件",MessageBoxButtons.OK,
MessageBoxIcon.Information,MessageBoxDefaultButton.Button1,MessageBoxOptions.ServiceNotification);
}
}
}