邮件发送问题以及(求发送邮件源代码)

using System.Net.Mail;

        System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();
        string SendName = TextBox1.Text;//"[email protected]";//收件人地址
         //string SendCName = "[email protected]";//抄送人地址
         msg.To.Add(SendName);
        //msg.CC.Add(SendCName); //抄送收件人地址
         msg.From = new MailAddress(SendName, null, System.Text.Encoding.UTF8);
        /* 上面3个参数分别是发件人地址（可以随便写），发件人姓名，编码*/
        msg.Subject = "这是测试邮件";//邮件标题
         msg.SubjectEncoding = System.Text.Encoding.UTF8;//邮件标题编码
         msg.Body = "邮件内容";//邮件内容
         msg.BodyEncoding = System.Text.Encoding.UTF8;//邮件内容编码
         msg.IsBodyHtml = false;//是否是HTML邮件
         msg.Priority = MailPriority.High;//邮件优先级
         SmtpClient client = new SmtpClient();
        client.Credentials = new System.Net.NetworkCredential("[email protected]", "123456789abcd");//上述写你的GMail邮箱和密码
         client.Port = 587;//Gmail使用的端口
        client.Host = "smtp.gmail.com";
        client.EnableSsl = true;//经过ssl加密
         object userState = msg;
        try
        {
            //client.SendAsync(msg, userState);//用这个发不出去            client.Send(msg);//用这个只能给163发给其他的发报错
            Response.Write("发送成功");
        }
        catch (System.Net.Mail.SmtpException ex)
        {
            Response.Write(ex.ToString());
        }
我不想用JMAIL .NET提供的类难道就不能发送邮件吗?? 哪个朋友做过给贴点代码上来小弟在这里谢谢了...

解决方案 »

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using System;
using System.Collections.Generic;
using System.Text;using System.Net.Mail;namespace SmtpMail
{
    class Program
    {
        /// <summary>
        /// Console App to send mails via Smtp
        /// </summary>
        /// <param name="args[0]">From</param>
        /// <param name="args[1]">To</param>
        /// <param name="args[2]">Subject</param>
        /// <param name="args[3]">Body</param>
        /// <param name="args[4]">Host</param>
        /// <param name="args[5]">Port</param>
        /// <param name="args[6]">User</param>
        /// <param name="args[7]">Password</param>
        static void Main(string[] args)
        {
            try
            {
                // TODO: Add error handling for invalid arguments                // To
                MailMessage mailMsg = new MailMessage();
                mailMsg.To.Add(args[1]);                // From
                MailAddress mailAddress = new MailAddress(args[0]);
                mailMsg.From = mailAddress;                // Subject and Body
                mailMsg.Subject = args[2];
                mailMsg.Body    = args[3];                // Init SmtpClient and send
                SmtpClient smtpClient = new SmtpClient(args[4], Convert.ToInt32(args[5]));
                System.Net.NetworkCredential credentials = new System.Net.NetworkCredential(args[5], args[5]);
                smtpClient.Credentials = credentials;                smtpClient.Send(mailMsg);
            }
            catch (Exception ex)
            {
                Console.WriteLine( ex.Message );
            }        }
    }
}
可以使用另外一个邮件发送组件
添加 Interop.CDO.dll,adodb 引用
public static void CDOsendmail(string from, string to, string subject,
string body, string userName, string password, string smtpServer)
{
//声明新的邮件实例
CDO.Message Msg = new CDO.Message();
//分别设置发送人、收信人、主题、内容
Msg.From = from;
Msg.To = to;
Msg.Subject = subject;
Msg.HTMLBody = "<html><body>"+body
+"</body></html>";
//设置发送参数，包括smtpServer,用户名,密码
CDO.IConfiguration Config = Msg.Configuration;
ADODB.Fields oFields = Config.Fields;
oFields["http://schemas.microsoft.com/cdo/configuration/sendusing"].Value = 2;
oFields["http://schemas.microsoft.com/cdo/configuration/sendusername"].Value=userName;
oFields["http://schemas.microsoft.com/cdo/configuration/sendpassword"].Value=password;
oFields["http://schemas.microsoft.com/cdo/configuration/smtpauthenticate"].Value=1;
oFields["http://schemas.microsoft.com/cdo/configuration/languagecode"].Value=0x0804;
oFields["http://schemas.microsoft.com/cdo/configuration/smtpserver"].Value=smtpServer;
oFields.Update();
//字符格式

Msg.BodyPart.Charset = "gb2312";
Msg.HTMLBodyPart.Charset = "gb2312";
//发送
Msg.Send();
Msg = null;
}
1楼的方式发邮件需要有邮件服务器，也就是smtp的服务器。
你可以用JMAIL来发送试试。
jmail.MessageClass ms = new jmail.MessageClass();
        ms.Charset = "gb2312";
        ms.ContentType = "text/html";
        ms.ISOEncodeHeaders = false;
        ms.Priority = Convert.ToByte(1);
        ms.From = "[email protected]";
        ms.FromName = "Lee";
        ms.Subject = "瑞润测试信息";
        ms.MailServerUserName = "邮箱的用户名";
        ms.MailServerPassWord = "邮箱的密码";
        ms.AddRecipient("[email protected]", "", "");
        ms.Body = "发送一个微笑！！：）";
        if (ms.Send("smtp.qq.com", false))
        {
            Label1.Text = "发送成功！";
        }
        else
        {
            Label1.Text = "发送失败！！请重试！";
        }
jmail可以在网络上下载下来。你自己下就可以了！或者你给我留个邮箱我发给你也可以！
.aspx
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <table id="TABLE1" runat="server" border="0" cellpadding="0" cellspacing="0">
            <tr>
                <td style="width: 393px">
                    收信:<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
                    主题:<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><br />
                    内容:<asp:TextBox ID="TextBox3" runat="server" Height="154px" TextMode="MultiLine"
                        Width="336px"></asp:TextBox><br />
                    <asp:Button ID="Button1" runat="server" Text="发送" OnClick="Button1_Click" /></td>
            </tr>
        </table>

    </div>
        <table id="Table2" runat="server" border="0" cellpadding="0" cellspacing="0" visible="false">
            <tr>
                <td align="center" style="width: 400px">
                    <asp:Label ID="Label1" runat="server" ForeColor="Red" Text="恭喜您，发表成功!"></asp:Label><br />
                    <asp:Button ID="Button2" runat="server" Text="返回" OnClick="Button2_Click" /></td>
            </tr>
        </table>
    </form>
</body>
</html>
.aspx.cs
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;
using System.Net.Mail;
public partial class sendMail : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
          ////设置发件人信箱,及显示名字
        MailAddress from = new MailAddress("[email protected]", "J.L.C");
        //设置收件人信箱,及显示名字
        MailAddress to = new MailAddress(TextBox1.Text, "JLC");
        //创建一个MailMessage对象
        MailMessage oMail = new MailMessage(from, to);         oMail.Subject = TextBox2.Text;      //邮件标题
        oMail.Body = TextBox3.Text;         //邮件内容        oMail.IsBodyHtml = true;            //指定邮件格式,支持HTML格式
        oMail.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");//邮件采用的编码
        oMail.Priority = MailPriority.High;//设置邮件的优先级为高        //发送邮件服务器
        SmtpClient client = new SmtpClient();
        client.Host = "smtp.126.com";    //指定邮件服务器
        client.Credentials = new NetworkCredential("[email protected]", "jlc3509589934");//指定服务器邮件,及密码        //发送
        try
        {
            client.Send(oMail);  //发送邮件
            Label1.Text = "恭喜你！邮件发送成功。";
        }
        catch
        {
            Label1.Text = "邮件发送失败，检查网络及信箱是否可用。";
        }        oMail.Dispose();        //释放资源        TABLE1.Visible = false;
        Table2.Visible = true;
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        //返回，继续发送
        Response.Redirect(Request.Url.ToString());
        TABLE1.Visible = true;
        Table2.Visible = false;
    }
}
smtp发信认证的问题，参考http://www.cnitblog.com/yhf119/archive/2006/02/18/6691.html
如果是.net1.1 代码如下： /// <summary>
///
/// </summary>
/// <param name="from">发送邮件地址</param>
/// <param name="to">接收邮件地址</param>
/// <param name="subject">邮件主题</param>
/// <param name="body">邮件正文</param>
/// <param name="name">用户名</param>
/// <param name="pwd">用户密码</param>
/// <param name="server">smtp服务器</param>
public void sendMail(string from,string to,string subject,string body,string name,string pwd,string server)
{
try
{
System.Web.Mail.MailMessage myMail=new MailMessage();
myMail.From =from;
myMail.To =to;
myMail.Subject =subject;
myMail.Priority = MailPriority.Low;
myMail.BodyFormat = MailFormat.Text;
myMail.Body =body;
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1"); //basic authentication
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", name); //set your username here
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", pwd); //set your password here
SmtpMail.SmtpServer=server;//your smtp server here
SmtpMail.Send(myMail);
Response.Write("<script>alert('发送成功!')</script>");
}
catch(Exception   e)
{
throw e;
}
}   如果是2.0，代码如下：    /// <summary>
    ///
    /// </summary>
    /// <param name="from">发送邮件地址</param>
    /// <param name="to">接收邮件地址</param>
    /// <param name="subject">邮件主题</param>
    /// <param name="body">邮件正文</param>
    /// <param name="name">用户名</param>
    /// <param name="pwd">用户密码</param>
    /// <param name="server">smtp服务器</param>
    public void SendMail(string from, string to, string subject, string body, string name, string pwd, string server)
    {
        MailMessage mess = new MailMessage();
        mess.From = new MailAddress(from);
        mess.Subject = subject;
        mess.IsBodyHtml = true;
        mess.BodyEncoding = System.Text.Encoding.UTF8;
        mess.Body = body;
        SmtpClient client = new SmtpClient();
        client.Host =server;
        client.Credentials = new System.Net.NetworkCredential(name, pwd);
        mess.To.Add(new MailAddress(to));        try
        {
            client.Send(mess);
            Response.Write("邮件发送到" + mess.To.ToString() + "<br>");
        }
        catch (Exception ee)
        {
            Response.Write(ee.Message + "<br>");
        }
    }
1.1的命名空间：System.Web.Mail   2.0的命名空间是System.Net;System.Net.mail
System.Net.Mail.SmtpException: 发送邮件失败。 ---> System.FormatException: 在邮件标头中找到无效的字符。在 System.Net.BufferBuilder.Append(String value, Int32 offset, Int32 count) 在 System.Net.Mail.EHelloCommand.PrepareCommand(SmtpConnection conn, String domain) 在 System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) 在 System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) 在 System.Net.Mail.SmtpClient.GetConnection() 在 System.Net.Mail.SmtpClient.Send(MailMessage message) --- 内部异常堆栈跟踪的结尾 --- 在 System.Net.Mail.SmtpClient.Send(MailMessage message) 在 Default3.Button1_Click(Object sender, EventArgs e) 位置 e:\项目\aspmail\Default3.aspx.cs:行号 74
Jmail 和其他组件暂不考虑只需要.NET的谢谢大家我会一个个试一边的.哪个合适会把分都给他谢谢大家...
         错误:
        //SMTP 服务器要求安全连接或客户端未通过身份验证。服务器响应为: 5.7.0 Must issue a STARTTLS command first. i6sm12257614tid.36"} System.Exception {System.Net.Mail.SmtpException}
        ////设置发件人信箱,及显示名字
        MailAddress from = new MailAddress("[email protected]");
        //设置收件人信箱,及显示名字
        MailAddress to = new MailAddress(TextBox1.Text);
        //创建一个MailMessage对象
        MailMessage oMail = new MailMessage(from, to);        oMail.Subject = TextBox2.Text;      //邮件标题
        oMail.Body = TextBox3.Text;         //邮件内容        oMail.IsBodyHtml = true;            //指定邮件格式,支持HTML格式
        oMail.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");//邮件采用的编码
        oMail.Priority = MailPriority.High;//设置邮件的优先级为高        //发送邮件服务器
        SmtpClient client = new SmtpClient();
        client.Host = "smtp.gmail.com";    //指定邮件服务器
        client.Credentials = new NetworkCredential("[email protected]", "123456789abcd");//指定服务器邮件,及密码        //发送
        try
        {
            client.Send(oMail);  //发送邮件
            Label1.Text = "恭喜你！邮件发送成功。";
        }
        catch(Exception ex)
        {
            Label1.Text = ex.ToString();
        }        oMail.Dispose();
        SendMail("[email protected]", TextBox1.Text, "测试", "主题", "[email protected]", "123456789abcd", "smtp.gmail.com");SMTP 服务器要求安全连接或客户端未通过身份验证。服务器响应为: 5.7.0 Must issue a STARTTLS command first. d1sm10863699tid.4这都是怎么回事啊??我怎么就发不出去有加啊? 需要配置什么地方吗?
请问需要配置本地的SMTP服务设置吗？如何配置呢？
我按照4楼的大哥的做法来执行，可是提示发送失败哦，请指教：）
下载一个jmail_free.msi，安装后，再注册下DLL
smtp需要身份认证，具体操作方法参考：http://www.cnitblog.com/yhf119/archive/2006/02/18/6691.html
The message was undeliverable. All servers failed to receive the message
        jmail.MessageClass ms = new jmail.MessageClass();
        ms.Charset = "gb2312";
        ms.ContentType = "text/html";
        ms.ISOEncodeHeaders = false;
        ms.Priority = Convert.ToByte(1);
        ms.From = "[email protected]";
        ms.FromName = "zjy";
        ms.Subject = "测试信息";
        ms.MailServerUserName = "[email protected]";
        ms.MailServerPassWord = "123456789abcd";
        ms.AddRecipient("[email protected]", "", "");
        ms.Body = "发送一个微笑！！：）";
        if (ms.Send("smtp.gmail.com", false))
        {
           TextBox1.Text = "发送成功！";
        }
        else
        {
            TextBox1.Text = "发送失败！！请重试！";
        }
        System.Web.HttpException: 与服务器的传输连接失败。 ---> System.Reflection.TargetInvocationException: 调用的目标发生了异常。 ---> System.Runtime.InteropServices.COMException (0x80040213): 与服务器的传输连接失败。 --- 内部异常堆栈跟踪的结尾 --- 在 System.RuntimeType.InvokeDispMethod(String name, BindingFlags invokeAttr, Object target, Object[] args, Boolean[] byrefModifiers, Int32 culture, String[] namedParameters) 在 System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) 在 System.Web.Mail.SmtpMail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) --- 内部异常堆栈跟踪的结尾 --- 在 System.Web.Mail.SmtpMail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) 在 System.Web.Mail.SmtpMail.CdoSysHelper.Send(MailMessage message) 在 System.Web.Mail.SmtpMail.Send(MailMessage message) 在 Default2.Button1_Click(Object sender, EventArgs e) 位置 e:\JmailSend\Default2.aspx.cs:行号 39


MailMessage mail = new MailMessage();
       mail.To = "[email protected]";
       mail.From = "[email protected]";
       mail.Subject = "this is a test email.";
       mail.Body = "Some text goes here";
       mail.BodyFormat = MailFormat.Html;//设置为HTML格式
       //设置为需要用户验证
       mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
       //设置验证用户名(把my_username_here改为你的验证用户名）
       mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "zjy.company");
       //设置验证密码（把password改为你的验证密码）
       mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "123456789abcd");
       SmtpMail.SmtpServer = "mail.gmail.com";  //邮件服务器地址
       try
       {
           SmtpMail.Send(mail);
       }
       catch (Exception ex)
       {
           Response.Write(ex.ToString());
       }
protected void btnSend_Click(object sender, EventArgs e)
        {
            try
            {
                MailAddress sendAddress = new MailAddress(txtEmail1.Text.Trim());
                MailAddress toAddress = new MailAddress(txtEmail2.Text.Trim());
                MailMessage message = new MailMessage(sendAddress, toAddress);
                message.Subject = txtTitle.Text;
                message.IsBodyHtml = true;
                message.Body = txtContent.Text;
                string smtp = "邮件服务器";
                SmtpClient sc = new SmtpClient(smtp);
                sc.Credentials = new System.Net.NetworkCredential(txtEmail1.Text.Trim(), "邮箱密码");
                sc.Send(message);
            }
            catch (SmtpException ex)
            {
                throw new System.Exception(ex.ToString());
            }
        }
System.Net.Mail.SmtpException: 操作已超时。在 System.Net.Mail.SmtpClient.Send(MailMessage message) 在 admin_Course_courseSentEmail.Button1_Click(Object sender, EventArgs e) 位置 e:\工作目录\OfficeChannel\OfficeChannel\ad_con_data\Course\courseSentEmail.aspx.cs:行号 52
引用 21 楼 sq_zhuyi 的回复:
smtp端口改为465

System.Net.Mail.SmtpException: 操作已超时。在 System.Net.Mail.SmtpClient.Send(MailMessage message) 在 admin_Course_courseSentEmail.Button1_Click(Object sender, EventArgs e) 位置 e:\工作目录\OfficeChannel\OfficeChannel\ad_con_data\Course\courseSentEmail.aspx.cs:行号 52
照理gmail用587端口可以的啊  到时465端口会出现“发送已超时”的错误
郁闷的是我们公司的邮件服务器默认465也不行