求C#中发送邮件（带附件）的代码

MailMessage msgMail = new MailMessage();
msgMail.To = "[email protected]";
msgMail.From = "[email protected]";
msgMail.Subject = "Attachment Test";
msgMail.BodyFormat = MailFormat.Text;
msgMail.Body = "Check out the attachment!";
msgMail.Attachments.Add(new MailAttachment("c:\\test.xml"));
SmtpMail.Send(msgMail);
Response.Write("Email was queued to disk");

http://blog.csdn.net/wthorse/archive/2006/06/13/794705.aspx

vs2003 引用 System.Web.Mail命名空间
vs2005 引用 System.Net.Mail命名空间,安全性得到了增强...
try
{
//创建邮件消息
MailMessage objMailMessage = new MailMessage();
objMailMessage.From = System.Configuration.ConfigurationSettings.AppSettings["mailfrom"];//源邮件地址"[email protected]"
objMailMessage.To = System.Configuration.ConfigurationSettings.AppSettings["mailto"];//目的邮件地址"[email protected]"
objMailMessage.Subject = "邮件的标题";//发送邮件的标题
objMailMessage.Body = "邮件的内容";//发送邮件的内容

string user = System.Configuration.ConfigurationSettings.AppSettings["mailuser"];//源邮件地址用户名
string psw = (System.Configuration.ConfigurationSettings.AppSettings["mailpsw"]);//源邮件地址用户密码
//基本权限
objMailMessage.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
//用户名
objMailMessage.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", user) ;
//密码
objMailMessage.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", psw);
//如果没有上述三行代码，则出现如下错误提示：服务器拒绝了一个或多个收件人地址。服务器响应为: 554 : Client host rejected: Access denied
//SMTP地址
SmtpMail.SmtpServer = System.Configuration.ConfigurationSettings.AppSettings["mailsvr"];//"smtp.163.com"
//开始发送邮件
SmtpMail.Send(objMailMessage);
}
catch(Exception ex)
{
Log4Net.WriteLog("Exec_MailSend ERROR="+ex.ToString());
}
...

2005——string server="smtp.163.com";
string file = "e:\xxx.rar";
MailMessage message = new System.Net.Mail.MailMessage("[email protected]", "[email protected]", "正文", "标题");
Attachment data = new System.Net.Mail.Attachment(file, System.Net.Mime.MediaTypeNames.Application.Octet);
System.Net.Mime.ContentDisposition disposition = data.ContentDisposition;
         disposition.CreationDate = File.GetCreationTime(file);
         message.Attachments.Add(data);
        SmtpClient client = new SmtpClient(server);
        client.Credentials = new NetworkCredential("用户名", "密码");
        client.Send(message);
        data.Dispose();

大哥啊。。
client.Credentials = new NetworkCredential("用户名", "密码");
这个NetworkCredential是您自己定义的吧
给个解释啊

大哥啊。。
client.Credentials = new NetworkCredential("用户名", "密码");
这个NetworkCredential是您自己定义的吧
给个解释啊
-----------------------------------------------------------
using System.Net;

http://www.51aspx.com/CV/JH1GEZ9ACZA70

测试过了，已经通过了<%@ Page Language="C#" %><%@ Import Namespace="System.Net.Mail" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">

    protected void Button1_Click(object sender, EventArgs e)
    {
        System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();        msg.From = new MailAddress("[email protected]");
        msg.To.Add(new MailAddress(TextBox1.Text));

        msg.Subject = TextBox2.Text;
        msg.Body = TextBox3.Text;
        string attachFile;
        attachFile=FileUpload1.FileName;        System.Net.Mail.Attachment mailadd = new Attachment(FileUpload1.PostedFile.InputStream, attachFile);
        msg.Attachments.Add(mailadd);        SmtpClient smt = new SmtpClient();
        smt.Send(msg);


    }
</script><html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
         <asp:Label ID="Label1" runat="server" Text="收件人地址："></asp:Label>
        <asp:TextBox ID="TextBox1" runat="server" Width="216px"></asp:TextBox><br />
        <br />
        <asp:Label ID="Label2" runat="server" Text="主题："></asp:Label>
        <asp:TextBox ID="TextBox2" runat="server" Width="219px"></asp:TextBox><br />
        <br />
        <asp:Label ID="Label4" runat="server" Text="附件："></asp:Label>
         
        <asp:FileUpload ID="FileUpload1" runat="server" /><br />
        <br />
        <asp:Label ID="Label3" runat="server" Text="内容："></asp:Label><br />
        <asp:TextBox ID="TextBox3" runat="server" Height="176px" Width="348px"></asp:TextBox><br />
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" Text="发送" OnClick="Button1_Click" />
        <asp:Button ID="Button2" runat="server" Text="取消" /></div>
    </form>
</body>
</html>然后在web.config里面配置下：
<?xml version="1.0"?>
<configuration>
<system.net>
    ／／配置smtp
    <mailSettings>
      <smtp   deliveryMethod="Network"  from="[email protected]">
        <network  defaultCredentials="false" host="smtp.126.com" port="25" userName="yuzhen20" password="tramper11"/>

      </smtp>
    </mailSettings>
  </system.net> <connectionStrings/>
<system.web>
    <globalization requestEncoding="gb2312" responseEncoding="gb2312"/>
<compilation debug="true"/>
<authentication mode="Windows"/>

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
            <error statusCode="403" redirect="NoAccess.htm" />
            <error statusCode="404" redirect="FileNotFound.htm" />
        </customErrors>
        -->
</system.web>
</configuration>

调试易

求C#中发送邮件（带附件）的代码

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