邮件群发 1.读txt文件格式:[email protected][email protected][email protected].判断邮件格式,正确的发邮件代码 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 txt读取,你会的,单个发送;http://www.cnblogs.com/wknight/archive/2008/12/30/1365636.html多个发送,就是循环 protected void ImageButton1_Click(object sender, ImageClickEventArgs e) { ds = u_member.GetList("UserName='" + username.Text.Trim() + "'"); if (this.CheckBoxMail.Checked) { if (this.txtEmail.Text == "") { Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('请输入您要接收信息的邮箱!')</script>"); } if (ds.Tables[0].Rows.Count == 0) { Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('请输入正确的用户名和邮件')</script>"); return; } else if (ds.Tables[0].Rows.Count == 1) { UserPwd = ds.Tables[0].Rows[0]["UserPwd"].ToString(); EMail = this.txtEmail.Text; sendemail(UserPwd); Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('密码已经成功发送到您的" + EMail + "新邮箱,请确认!')</script>"); return; } } else { if (ds.Tables[0].Rows.Count == 0) { Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('请输入正确的用户名')</script>"); return; } else if (ds.Tables[0].Rows.Count == 1) { UserPwd = ds.Tables[0].Rows[0]["UserPwd"].ToString(); EMail = ds.Tables[0].Rows[0]["E_Mail"].ToString(); sendemail(UserPwd); Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('密码已经成功发送到您的" + EMail + "注册邮箱,请确认!')</script>"); return; } } } private void sendemail(string pwd) { string Subject = "欢迎来龙买家电子商务"; jmail.Message Jmail = new jmail.Message(); //读取HTML模板,即发送的页面 string strPath = System.Web.HttpContext.Current.Server.MapPath("~/user/MailInfo.html"); //读取文件,“System.Text.Encoding.Default”可以解决中文乱码问题 StreamReader sr = new StreamReader(strPath, System.Text.Encoding.Default); StringBuilder body = new StringBuilder(); body.Append(sr.ReadToEnd()); //关闭文件流 sr.Close(); //替换指定内容,通常为需要变动的内容 string userName = this.username.Text.Trim(); string upwd = B2B.Utility.DESEncrypt.Decrypt(pwd); body = body.Replace("<%userName%>", userName); body = body.Replace("<%pwd%>", upwd); string FromEmail = "[email protected]"; string ToEmail = string.Empty; //发送到新邮箱 if (this.CheckBoxMail.Checked) { ToEmail = this.txtEmail.Text.Trim(); } //发送到默认邮箱 else { ds = u_member.GetList("UserName='" + username.Text.Trim() + "'"); EMail = ds.Tables[0].Rows[0]["E_Mail"].ToString(); ToEmail = EMail.ToString(); } //Silent属性:如果设置为true,JMail不会抛出例外错误. JMail. Send( () 会根据操作结果返回true或false Jmail.Silent = true; //Jmail创建的日志,前提loging属性设置为true Jmail.Logging = true; //字符集,缺省为"US-ASCII" Jmail.Charset = "GB2312"; //信件的contentype. 缺省是"text/plain") : 字符串如果你以HTML格式发送邮件, 改为"text/html"即可。 Jmail.ContentType = "text/html"; //添加收件人 Jmail.AddRecipient(ToEmail, "", ""); Jmail.From = FromEmail; //发件人邮件用户名 Jmail.MailServerUserName = "zhuwenjuan_1988"; //发件人邮件密码 Jmail.MailServerPassWord = "juan+526"; //设置邮件标题 Jmail.Subject = Subject; //邮件添加附件,(多附件的话,可以再加一条Jmail.AddAttachment( "c:\\test.jpg",true,null);)就可以搞定了。[注]:加了附件,讲把上面的Jmail.ContentType="text/html";删掉。否则会在邮件里出现乱码。 //Jmail.AddAttachment( "c:\\test.jpg",true,null); //邮件内容 Jmail.Body = body.ToString().Trim(); //Jmail发送的方法,可以修改,此为163邮箱服务器 Jmail.Send("smtp.163.com", false); //Jmail.Close(); }可以选择用html的形式发送<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>无标题文档</title><style type="text/css">#Layer1 { position:absolute; width:544px; height:311px; z-index:1; left: 307px; top: 93px; border-top-width: thin; border-right-width: thin; border-bottom-width: thin; border-left-width: thin; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid;}.font {font-size: 12px}table { font-family: "宋体"; font-size: 12px; font-style: normal; line-height: normal; font-weight: lighter; color: #666666;}</style></head><body><div id="Layer1"> <table width="400" height="296" border="0" align="center"> <tr> <td height="37"><img src="http://www.dragonbuyer.com/html/IndexImages/jb_index_image/logo.png" width="203" height="61" /></td> </tr> <tr> <td height="33"><p class="font">尊敬的用户您好:</p> </td> </tr> <tr> <td height="38">您使用了找回密码的功能,下面是您注册时使用的用户名和密码,请妥善保管。</td> </tr> <tr> <td><table border="0" width="436"> <tbody> <tr> <td width="179" align="right"><p>您的用户名</span>:</p></td> <td width="247"><p><input type="text" id="lbText" value="<%userName%>" /></p></td> </tr> <tr> <td align="right"><p>您的密码:</p></td> <td><p><input type="text" id="Text1" value="<%pwd%>" /</td> </tr> </tbody> </table></td> </tr> <tr> <td>感谢您对龙买家电子商务的全力支持。</td> </tr> <tr> <td align="right">龙买家电子商务</td> </tr> </table></div></body></html> using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.IO;using System.Net.Mail;using System.Text;using System.Text.RegularExpressions;public partial class _Default : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { string Path = @"e:\File\test.txt"; insertStr(Path); } //读txt文件,判断邮件格式 public void insertStr(string Path) { string strLine = ""; //totalCnt int totalCnt = 0; //successCnt int successCnt = 1; try { StreamReader sr = new StreamReader(Path, Encoding.GetEncoding("GB2312")); strLine = sr.ReadLine(); strLine = strLine.Replace("\t", ""); //1 Line if (IsEmail(strLine)) { SendMail("smtp.163.com", "fenge", "iloveyou", "[email protected]", "", "hi", "hi", "e:\\File\\test.txt"); } while (strLine != null) { strLine = sr.ReadLine(); if (strLine != null) { //check-------->true------->sendMail if (IsEmail(strLine)) { SendMail("smtp.163.com", "wln.13", "ilovemyfamily", "[email protected]", "", "hi", "hi", "e:\\File\\test.txt"); successCnt++; } } totalCnt++; } sr.Dispose(); sr.Close(); } catch { } } public static bool IsEmail(string email) { Regex reg = new Regex(@"^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$"); return reg.IsMatch(email); } /// <summary> /// 发送邮件 /// </summary> /// <param name= "strSmtpServer "> smtp地址 </param> /// <param name= "UserName "> 用户名 </param> /// <param name= "Password "> 密码 </param> /// <param name= "strFrom "> 发信人地址 </param> /// <param name= "strto "> 收信人地址 </param> /// <param name= "strSubject "> 邮件标题 </param> /// <param name= "strBody "> 邮件正文 </param> public static void SendMail(string strSmtpServer, string UserName, string Password, string strFrom, string strto, string strSubject, string strBody, string strFileName) { //生成一个 使用SMTP发送邮件的客户端对象 System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient(strSmtpServer); //表示以当前登录用户的默认凭据进行身份验证 client.UseDefaultCredentials = true; //包含用户名和密码 client.Credentials = new System.Net.NetworkCredential(UserName, Password); //指定如何发送电子邮件。 //Network 电子邮件通过网络发送到 SMTP 服务器。 //PickupDirectoryFromIis 将电子邮件复制到挑选目录,然后通过本地 Internet 信息服务 (IIS) 传送。 //SpecifiedPickupDirectory 将电子邮件复制到 SmtpClient.PickupDirectoryLocation 属性指定的目录,然后由外部应用程序传送。 client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network; //建立邮件对象 System.Net.Mail.MailMessage message = new System.Net.Mail.MailMessage(strFrom, strto, strSubject, strBody); //定义邮件正文,主题的编码方式 message.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312"); message.SubjectEncoding = System.Text.Encoding.GetEncoding("GB2312"); //获取或设置一个值,该值指示电子邮件正文是否为 HTML。 message.IsBodyHtml = false; //指定邮件优先级 message.Priority = System.Net.Mail.MailPriority.Normal; //添加附件 //System.Web.Mail.MailAttachment mailAttachment=new System.Web.Mail.MailAttachment(@ "f:/baihe.txt "); if (strFileName != " " && strFileName != null) { Attachment data = new Attachment(strFileName); message.Attachments.Add(data); } //发件人身份验证,否则163 发不了 client.Credentials = new System.Net.NetworkCredential(strFrom, Password); //发送 client.Send(message); } } SmtpClient smtp = new SmtpClient();//实例化一个SmtpClient smtp.DeliveryMethod = SmtpDeliveryMethod.Network;//将smtp的出站方式设为Network smtp.EnableSsl = false;//smtp服务器是否启用SSL加密 smtp.Host ="smtp.163.com";//指定 smtp 服务器地址smtp.163.com smtp.Port = 25;//指定 smtp 服务器的端口,默认是25,如果采用默认端口,可省去 //如果你的SMTP服务器不需要身份认证,则使用下面的方式,不过,目前基本没有不需要认证的了 smtp.UseDefaultCredentials =true;//如果需要认证,则用下面的方式 smtp.Credentials = new NetworkCredential("你的邮箱账号","你的邮箱密码");//登录邮件 MailMessage mm = new MailMessage();//实例化一个邮件类 mm.Priority = MailPriority.Normal;//邮件的优先级,分为 Low, Normal, High,通常用 Normal即可 //收件方看到的邮件来源; //第一个参数是发信人邮件地址 //第二参数是发信人显示的名称 //第三个参数是 第二个参数所使用的编码,如果指定不正确,则对方收到后显示乱码 //936是简体中文的codepage值 mm.From = new MailAddress("邮箱账号", "昵称、名称", Encoding.GetEncoding(936)); //ReplyTo 表示对方回复邮件时默认的接收地址,即:你用一个邮箱发信,但却用另一个来收信 //上面后两个参数的意义, 同 From 的意义 mm.ReplyTo = new MailAddress("邮箱账号","昵称、名称", Encoding.GetEncoding(936)); // 收件人地址,可以多个,例如:([email protected],[email protected]),多个以逗号分开 mm.To.Add("[email protected],[email protected],[email protected]"); mm.Subject = "测试";//标题 mm.IsBodyHtml = true;//是否以html格式发送 mm.BodyEncoding = Encoding.GetEncoding(936);//正文的编码,防止乱码 mm.Body = "测试";//邮件的内容,即:正文 //附件 //mm.Attachments.Add(new Attachment(@"D:\a.doc", System.Net.Mime.MediaTypeNames.Application.Rtf)); //多个附件 //mm.Attachments.Add(new Attachment(@"D:\c.doc")); //发送邮件 smtp.Send(mm); 下个Discuz!NT吧,里面的注册验证里有完整的源码实例 最重要的是先找到可以让你群发的邮件服务商,同时也不要被Bloack掉或者spam asp.net 验证! 远程图片本地化? 在线客服 思路 我是没有办法了,gridview的最简单的添加,删除修改,我都做不出来了… 各位大哥帮忙看看~ DataGrid增加数据 请问一个窗口拆分问题,请各位多多指教! 怎么在内存中建立一张图片,然后显示在页面的指定位置上(不保存在文件里)? asp.net 根据execl模板导出数据代码 我想从asp转来学asp.net请问各位要学"好"asp.net起码要会一些什么,又应该学一些什么呢? 弹出式菜单的效果怎么做,就是鼠标移到其上面,就会弹出菜单,移走后知道归位,用.NET或Js+CSS怎么实现? 求一个源码
{ ds = u_member.GetList("UserName='" + username.Text.Trim() + "'"); if (this.CheckBoxMail.Checked)
{
if (this.txtEmail.Text == "")
{
Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('请输入您要接收信息的邮箱!')</script>");
}
if (ds.Tables[0].Rows.Count == 0)
{
Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('请输入正确的用户名和邮件')</script>");
return;
}
else if (ds.Tables[0].Rows.Count == 1)
{
UserPwd = ds.Tables[0].Rows[0]["UserPwd"].ToString();
EMail = this.txtEmail.Text;
sendemail(UserPwd);
Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('密码已经成功发送到您的" + EMail + "新邮箱,请确认!')</script>");
return;
}
}
else
{
if (ds.Tables[0].Rows.Count == 0)
{
Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('请输入正确的用户名')</script>");
return;
}
else if (ds.Tables[0].Rows.Count == 1)
{
UserPwd = ds.Tables[0].Rows[0]["UserPwd"].ToString();
EMail = ds.Tables[0].Rows[0]["E_Mail"].ToString();
sendemail(UserPwd);
Page.RegisterStartupScript("aa", "<script language= 'javascript'>alert('密码已经成功发送到您的" + EMail + "注册邮箱,请确认!')</script>");
return;
}
}
}
private void sendemail(string pwd)
{
string Subject = "欢迎来龙买家电子商务";
jmail.Message Jmail = new jmail.Message();
//读取HTML模板,即发送的页面
string strPath = System.Web.HttpContext.Current.Server.MapPath("~/user/MailInfo.html");
//读取文件,“System.Text.Encoding.Default”可以解决中文乱码问题
StreamReader sr = new StreamReader(strPath, System.Text.Encoding.Default);
StringBuilder body = new StringBuilder();
body.Append(sr.ReadToEnd());
//关闭文件流
sr.Close();
//替换指定内容,通常为需要变动的内容
string userName = this.username.Text.Trim();
string upwd = B2B.Utility.DESEncrypt.Decrypt(pwd);
body = body.Replace("<%userName%>", userName);
body = body.Replace("<%pwd%>", upwd);
string FromEmail = "[email protected]";
string ToEmail = string.Empty;
//发送到新邮箱
if (this.CheckBoxMail.Checked)
{
ToEmail = this.txtEmail.Text.Trim();
}
//发送到默认邮箱
else
{
ds = u_member.GetList("UserName='" + username.Text.Trim() + "'");
EMail = ds.Tables[0].Rows[0]["E_Mail"].ToString();
ToEmail = EMail.ToString(); }
//Silent属性:如果设置为true,JMail不会抛出例外错误. JMail. Send( () 会根据操作结果返回true或false
Jmail.Silent = true;
//Jmail创建的日志,前提loging属性设置为true
Jmail.Logging = true;
//字符集,缺省为"US-ASCII"
Jmail.Charset = "GB2312";
//信件的contentype. 缺省是"text/plain") : 字符串如果你以HTML格式发送邮件, 改为"text/html"即可。
Jmail.ContentType = "text/html";
//添加收件人
Jmail.AddRecipient(ToEmail, "", "");
Jmail.From = FromEmail;
//发件人邮件用户名
Jmail.MailServerUserName = "zhuwenjuan_1988";
//发件人邮件密码
Jmail.MailServerPassWord = "juan+526";
//设置邮件标题
Jmail.Subject = Subject;
//邮件添加附件,(多附件的话,可以再加一条Jmail.AddAttachment( "c:\\test.jpg",true,null);)就可以搞定了。[注]:加了附件,讲把上面的Jmail.ContentType="text/html";删掉。否则会在邮件里出现乱码。
//Jmail.AddAttachment( "c:\\test.jpg",true,null);
//邮件内容
Jmail.Body = body.ToString().Trim();
//Jmail发送的方法,可以修改,此为163邮箱服务器
Jmail.Send("smtp.163.com", false);
//Jmail.Close();
}可以选择用html的形式发送
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style type="text/css">
#Layer1 {
position:absolute;
width:544px;
height:311px;
z-index:1;
left: 307px;
top: 93px;
border-top-width: thin;
border-right-width: thin;
border-bottom-width: thin;
border-left-width: thin;
border-top-style: solid;
border-right-style: solid;
border-bottom-style: solid;
border-left-style: solid;
}
.font {font-size: 12px}
table {
font-family: "宋体";
font-size: 12px;
font-style: normal;
line-height: normal;
font-weight: lighter;
color: #666666;
}</style>
</head><body>
<div id="Layer1">
<table width="400" height="296" border="0" align="center">
<tr>
<td height="37"><img src="http://www.dragonbuyer.com/html/IndexImages/jb_index_image/logo.png" width="203" height="61" /></td>
</tr>
<tr>
<td height="33"><p class="font">尊敬的用户您好:</p> </td>
</tr>
<tr>
<td height="38">您使用了找回密码的功能,下面是您注册时使用的用户名和密码,请妥善保管。</td>
</tr>
<tr>
<td><table border="0" width="436">
<tbody>
<tr>
<td width="179" align="right"><p>您的用户名</span>:</p></td>
<td width="247"><p><input type="text" id="lbText" value="<%userName%>" /></p></td>
</tr>
<tr>
<td align="right"><p>您的密码:</p></td>
<td><p><input type="text" id="Text1" value="<%pwd%>" /</td>
</tr>
</tbody>
</table></td>
</tr>
<tr>
<td>感谢您对龙买家电子商务的全力支持。</td>
</tr>
<tr>
<td align="right">龙买家电子商务</td>
</tr>
</table>
</div>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Net.Mail;
using System.Text;
using System.Text.RegularExpressions;public partial class _Default : System.Web.UI.Page
{ protected void Page_Load(object sender, EventArgs e)
{
string Path = @"e:\File\test.txt";
insertStr(Path);
} //读txt文件,判断邮件格式
public void insertStr(string Path)
{
string strLine = "";
//totalCnt
int totalCnt = 0;
//successCnt
int successCnt = 1;
try
{
StreamReader sr = new StreamReader(Path, Encoding.GetEncoding("GB2312")); strLine = sr.ReadLine();
strLine = strLine.Replace("\t", "");
//1 Line
if (IsEmail(strLine))
{
SendMail("smtp.163.com", "fenge", "iloveyou", "[email protected]", "", "hi", "hi", "e:\\File\\test.txt");
}
while (strLine != null)
{
strLine = sr.ReadLine();
if (strLine != null)
{
//check-------->true------->sendMail
if (IsEmail(strLine))
{
SendMail("smtp.163.com", "wln.13", "ilovemyfamily", "[email protected]", "", "hi", "hi", "e:\\File\\test.txt");
successCnt++;
}
}
totalCnt++;
}
sr.Dispose();
sr.Close();
}
catch
{
}
} public static bool IsEmail(string email)
{
Regex reg = new Regex(@"^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$");
return reg.IsMatch(email);
}
/// <summary>
/// 发送邮件
/// </summary>
/// <param name= "strSmtpServer "> smtp地址 </param>
/// <param name= "UserName "> 用户名 </param>
/// <param name= "Password "> 密码 </param>
/// <param name= "strFrom "> 发信人地址 </param>
/// <param name= "strto "> 收信人地址 </param>
/// <param name= "strSubject "> 邮件标题 </param>
/// <param name= "strBody "> 邮件正文 </param>
public static void SendMail(string strSmtpServer, string UserName, string Password, string strFrom, string strto, string strSubject, string strBody, string strFileName)
{
//生成一个 使用SMTP发送邮件的客户端对象
System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient(strSmtpServer); //表示以当前登录用户的默认凭据进行身份验证
client.UseDefaultCredentials = true;
//包含用户名和密码
client.Credentials = new System.Net.NetworkCredential(UserName, Password); //指定如何发送电子邮件。
//Network 电子邮件通过网络发送到 SMTP 服务器。
//PickupDirectoryFromIis 将电子邮件复制到挑选目录,然后通过本地 Internet 信息服务 (IIS) 传送。
//SpecifiedPickupDirectory 将电子邮件复制到 SmtpClient.PickupDirectoryLocation 属性指定的目录,然后由外部应用程序传送。 client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network; //建立邮件对象
System.Net.Mail.MailMessage message = new System.Net.Mail.MailMessage(strFrom, strto, strSubject, strBody); //定义邮件正文,主题的编码方式
message.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");
message.SubjectEncoding = System.Text.Encoding.GetEncoding("GB2312"); //获取或设置一个值,该值指示电子邮件正文是否为 HTML。
message.IsBodyHtml = false; //指定邮件优先级 message.Priority = System.Net.Mail.MailPriority.Normal; //添加附件
//System.Web.Mail.MailAttachment mailAttachment=new System.Web.Mail.MailAttachment(@ "f:/baihe.txt ");
if (strFileName != " " && strFileName != null)
{
Attachment data = new Attachment(strFileName);
message.Attachments.Add(data);
}
//发件人身份验证,否则163 发不了
client.Credentials = new System.Net.NetworkCredential(strFrom, Password);
//发送
client.Send(message);
} }
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;//将smtp的出站方式设为Network
smtp.EnableSsl = false;//smtp服务器是否启用SSL加密
smtp.Host ="smtp.163.com";//指定 smtp 服务器地址smtp.163.com
smtp.Port = 25;//指定 smtp 服务器的端口,默认是25,如果采用默认端口,可省去
//如果你的SMTP服务器不需要身份认证,则使用下面的方式,不过,目前基本没有不需要认证的了
smtp.UseDefaultCredentials =true;//如果需要认证,则用下面的方式
smtp.Credentials = new NetworkCredential("你的邮箱账号","你的邮箱密码");//登录邮件
MailMessage mm = new MailMessage();//实例化一个邮件类
mm.Priority = MailPriority.Normal;//邮件的优先级,分为 Low, Normal, High,通常用 Normal即可
//收件方看到的邮件来源;
//第一个参数是发信人邮件地址
//第二参数是发信人显示的名称
//第三个参数是 第二个参数所使用的编码,如果指定不正确,则对方收到后显示乱码
//936是简体中文的codepage值
mm.From = new MailAddress("邮箱账号", "昵称、名称", Encoding.GetEncoding(936));
//ReplyTo 表示对方回复邮件时默认的接收地址,即:你用一个邮箱发信,但却用另一个来收信
//上面后两个参数的意义, 同 From 的意义
mm.ReplyTo = new MailAddress("邮箱账号","昵称、名称", Encoding.GetEncoding(936));
// 收件人地址,可以多个,例如:([email protected],[email protected]),多个以逗号分开
mm.To.Add("[email protected],[email protected],[email protected]");
mm.Subject = "测试";//标题
mm.IsBodyHtml = true;//是否以html格式发送
mm.BodyEncoding = Encoding.GetEncoding(936);//正文的编码,防止乱码 mm.Body = "测试";//邮件的内容,即:正文
//附件
//mm.Attachments.Add(new Attachment(@"D:\a.doc", System.Net.Mime.MediaTypeNames.Application.Rtf));
//多个附件
//mm.Attachments.Add(new Attachment(@"D:\c.doc"));
//发送邮件 smtp.Send(mm);