使用.net实现发送Email

源代码如下：

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net.Mail;
//using System.Web.Mail;
//using System.Web.Mail;

public partial class mail : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
MailAddress MessageFrom = new MailAddress("jsqdnsw@163.com"); //发件人邮箱地址
string MessageTo = "jsqdnsw@vip.qq.com"; //收件人邮箱地址
string MessageSubject = "邮件主题"; //邮件主题
string MessageBody = "这里是邮件内容。"; //邮件内容
if (Send(MessageFrom, MessageTo, MessageSubject, MessageBody))
{
Response.Write("发送邮件成功");
}
else
{
Response.Write("发送邮件失败");
}
}

/// <summary>
/// 发送电子邮件
/// </summary>
/// <param name="MessageFrom">发件人邮箱地址</param>
/// <param name="MessageTo">收件人邮箱地址</param>
/// <param name="MessageSubject">邮件主题</param>
/// <param name="MessageBody">邮件内容</param>
/// <returns></returns>
public bool Send(MailAddress MessageFrom, string MessageTo, string MessageSubject, string MessageBody)
{
MailMessage message = new MailMessage();

// if (FileUpload1.PostedFile.FileName != "")
// {
// Attachment att = new Attachment("d://test.txt");//发送附件的内容
// message.Attachments.Add(att);
// }

message.From = MessageFrom;
message.To.Add(MessageTo); //收件人邮箱地址可以是多个以实现群发
message.Subject = MessageSubject;
message.Body = MessageBody;
//message.Attachments.Add(objMailAttachment);
message.IsBodyHtml = false; //是否为html格式
message.Priority = MailPriority.High; //发送邮件的优先等级

SmtpClient sc = new SmtpClient();
sc.Host = "smtp.163.com"; //指定发送邮件的服务器地址或IP
sc.Port = 25; //指定发送邮件端口
sc.Credentials = new System.Net.NetworkCredential("jsqdnsw@163.com", "***"); //指定登录服务器的用户名和密码

try
{
sc.Send(message); //发送邮件
}
catch
{
return false;
}
return true;

}
}

/*注意：像有些163邮箱的不能发送email可能是你的邮箱没有开通这项服务导致的，据说163邮箱在06年11月份请申请的才有这项服务*/