挑战高手,.NET邮件发不了...

Question

/// <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
            client.Credentials = new System.Net.NetworkCredential(strFrom, Password);
            //发送
            client.Send(message);                       
    }    protected void Button1_Click(object sender, EventArgs e)
    {
        SendMail("smtp-ent.21cn.com", "zhouyf", "abc123", "[email protected]", TextBox1.Text.Trim(), TextBox2.Text.Trim(), TextBox3.Text.Trim(), TextBox4.Value.Trim());
        //SendMail("smtp.163.com", "abc", "abc", "[email protected]", TextBox1.Text.Trim(), TextBox2.Text.Trim(), TextBox3.Text.Trim(), TextBox4.Value.Trim());
    }

Answer 1

这个就够了 不用那么长的代码
public static bool SendEmail(
            string server, int port,
            string user, string pass,
            System.Net.Mail.MailMessage mail
            )
        {
            System.Net.Mail.SmtpClient client = new SmtpClient(server, port);
            client.Credentials = new System.Net.NetworkCredential(user, pass);
            client.Send(mail);
            return true;
        }

Answer 2

以上是我的全部代码,用163的可以发.但,相同代码,用21CN的发不了.以下是我的个人资料大家试试(不要改我秘密啊)
--------------------------------------
smtp-ent.21cn.com
用户:[email protected]
密码:abc123
------------------------------
注:同样资料,在FOXMAIL里配置,也是可以发的.

Answer 3

还有 看是否用了SSL
 client.EnableSsl = true;
来表示
gmail就是SSL的 所以必须启用SSl觉得代码中这个是多余的
//表示以当前登录用户的默认凭据进行身份验证
client.UseDefaultCredentials = true;因为你明确指定了一个Credential

Answer 4

====我是楼主,
麻烦大家用以下资料,在自己的邮件程序里试1下.
----真实资料-----------------------------------
smtp-ent.21cn.com
用户:[email protected]
密码:abc123
------------------------------
注:以上资料,在FOXMAIL里配置,是可以发的.

Answer 5

晕死,果然有人改密码.我改回来了,还是abc123,诅咒一下. 再乱改秘密的,是小狗,全家死光!

Answer 6

yzqlee() ,麻烦你用FOXMAIL之类的配1下哦.

Answer 7

/*****************************************/
/* Project name: MailDaemon              */
/* Module name: Mail Sender              */
/* Author: Ming Yeh                      */
/* Created date: 2006-08-21              */
/* Last modified by:                     */
/* Last modify date:                     */
/*                .-._                   */
/*               {_}^ )o                 */
/*      {\________//~`                   */
/*       (         )                     */
/*       /||~~~~~||\                     */
/*      |_\\_    \\_\_                   */
/*                                       */
/*****************************************/
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Mail;
using System.Text;namespace mailDaemon
{
    class MailSender
    {
        private const string SERVER_IP = "61.181.255.80";
        private const string SENDER_EMAIL = "[email protected]";
        private const string USERNAME = "mailist";
        private const string PASSWORD = "bu2kwh1at";
        private const string SUBJECT = "高速路商机速递";
        string _server;
        string _senderEmail;
        string _username;
        string _password;
        static bool mailSent = false;        public MailSender(string server, string senderEmail, string username, string password)
        {
            _server = server;
            _senderEmail = senderEmail;
            _username = username;
            _password = password;
        }
        public MailSender():this(SERVER_IP, SENDER_EMAIL, USERNAME, PASSWORD)
        {
            
        }
        public void SendMail(string email, string content)
        {
            MailMessage msg = new MailMessage(_senderEmail, email, SUBJECT, content);
            msg.BodyEncoding = Encoding.UTF8;
            msg.Priority = MailPriority.High;
            msg.IsBodyHtml = true;
            SmtpClient client = new SmtpClient(_server);
            NetworkCredential credential = new NetworkCredential(_username, _password);
            client.UseDefaultCredentials = false;
            client.Credentials = credential;
            client.SendCompleted += new SendCompletedEventHandler(client_SendCompleted);
            client.SendAsync(msg, "Message Sent.");
            Console.WriteLine(email + "邮件发送中，按C取消发送");
            //string answer = Console.ReadLine();
            //if (answer.StartsWith("c") && mailSent == false)
            //{
            //    client.SendAsyncCancel();
            //}
            Console.WriteLine(email + "处理完成");
        }        void client_SendCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
        {
            String token = (string)e.UserState;            if (e.Cancelled)
            {
                Console.WriteLine("[{0}] Send canceled.", token);
            }
            if (e.Error != null)
            {
                Console.WriteLine("[{0}] {1}", token, e.Error.ToString());
            }
            else
            {
                Console.WriteLine("Message sent.");
            }
            mailSent = true;
        }
    }
}

Answer 8

嘿嘿，你的代码好像就是我原来贴给你的。嘿嘿看看是不是有杀毒软件或者防火墙之类的阻止发送邮件了？我原来是因为McAfee杀毒软件我用的没问题啊。163，sina，公司邮箱 之类的，都没有问题啊以上代码是asp.net2.0的

Answer 9

to:junzhang4008(程序可以让尸体动起来)----真实资料-----------------------------------
smtp-ent.21cn.com
用户:[email protected]
密码:abc123同样资料,FOXMAIL可以,我们程序不可以...--另外:如果是杀毒软件,不会有,163可以,21cn不可以的现象啊.

Answer 10

http://www.haisoo.com/index.aspx?cl=2&key=%E9%82%AE%E4%BB%B6打开后看这两个，一个是用System.Web.Mail，一个是用System.Net.Mail利用ASP.NET的组件发邮件（一）
利用ASP.NET的组件发邮件（二）

Answer 11

SocketException (0x274c): 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。]
   System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) +1002034
   System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) +33
   System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) +431[WebException: 无法连接到远程服务器]
   System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout) +1447624
   System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback) +190
   System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) +21
   System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) +318
   System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) +227
   System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) +316
   System.Net.Mail.SmtpClient.GetConnection() +42
   System.Net.Mail.SmtpClient.Send(MailMessage message) +1485[SmtpException: 发送邮件失败。]
   System.Net.Mail.SmtpClient.Send(MailMessage message) +2074
   MailSystem.CommonClass.SendMail(String strSmtpServer, String UserName, String Password, String strFrom, String strto, String strSubject, String strBody, String strFileName) in e:\项目\SendMail2005\App_Code\CommonClass.cs:98
   Send.SendButton_Click(Object sender, EventArgs e) in e:\项目\SendMail2005\Send.aspx.cs:39
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint

Answer 12

51aspx邮件发送示例ASP.net源码http://www.51aspx.com/CV/JH1GEZ9ACZA70/

Answer 13

发邮件 需要ESMtp验证
.NET SMTP组件不直接支持
但可以通过CDO的方式
可以通过设置MaillMessage的Field 属性 来实现楼主google一下巴

Answer 14

        // Constructor
        private AlarmSendingByEmail(string occurredTime, AlarmTag alarmTag, List<string> emailList,
            String language, int count)
        {
            this.occurredTime = occurredTime;
            this.alarmTag = alarmTag;
            this.emailList = emailList;
            this.sendingMode = Common.SendingMode.EMAIL.ToString();
            this.language = language;
            this.count = count;            DataFactory temp = new DataFactory("AlarmSystem");
            DataTable smtpTable = temp.GetTable("Select smtp, sender, subject, Account, AccountPassword from TMailAccount");            if (smtpTable.Rows.Count != 1)
            {
                LogEntry log = new LogEntry();
                log.Message = "Record of TMailAccount is wrong!";
                Dictionary<string, object> errorInfo = new Dictionary<string, object>();
                errorInfo.Add("DateTime", DateTime.Now);
                log.ExtendedProperties = errorInfo;
                log.Categories.Add("Error");
                Logger.Write(log);
                return;
            }            this.mailHost = smtpTable.Rows[0]["Smtp"].ToString();
            this.sender = smtpTable.Rows[0]["Sender"].ToString();
            this.mailSubject = smtpTable.Rows[0]["Subject"].ToString();
            this.accountPWD = smtpTable.Rows[0]["AccountPassword"].ToString();
            this.mailAccount = smtpTable.Rows[0]["Account"].ToString();
            this.smtp = new SmtpClient(this.mailHost);
            //如果Smtp服务器需要帐号、密码验证，并且数据库中有准确的帐户、密码
            //用此帐户、密码进行验证
            if ((mailAccount != "") && (accountPWD != ""))
            {
                this.smtp.Credentials = new System.Net.NetworkCredential(mailAccount, accountPWD);
            }
        }        public static AlarmSendingByEmail GetInstance(string occurredTime, AlarmTag alarmTag, List<string> emailList,
            String language, int count)
        {
            if (instance == null)
            {
                lock (lockObject)
                {
                    if (instance == null)
                    {
                        instance = new AlarmSendingByEmail(occurredTime, alarmTag, emailList, language, count);
                    }
                }
            }
            return instance;
        }        /// <summary>
        /// 发送email，包含多个发送目标或多次发送。
        /// </summary>
        public override void Send()
        {
            lock (lockObject)
            {
                string message;
                if (this.language == Common.SendingLanguage.CHS.ToString())
                {
                    message = this.alarmTag.GetMessage(this.occurredTime, Common.SendingLanguage.CHS);
                }
                else //CHT
                {
                    message = this.alarmTag.GetMessage(this.occurredTime, Common.SendingLanguage.CHT);
                }
                foreach (string address in this.emailList)
                {
                    //发送Email方法
                    this.SendByEmail(address, this.count, message);
                }
            }
        }        //By navy
        /// <summary>
        /// 异步发送Email方法
        /// </summary>
        /// <param name="mailTo">Email要发送的地址</param>
        /// <param name="sendCount">发送次数</param>
        /// <param name="sendMessage">发送信息</param>
        /// <returns></returns>
        private void SendByEmail(string mailTo, int sendCount, string sendMessage)
        {
            for (int i = 0; i < sendCount; i++)
            {
                try
                {
                    MailMessage mailMsg = new MailMessage(this.sender, mailTo, this.mailSubject, sendMessage);
                    object token = mailMsg;
                    this.smtp.SendAsync(mailMsg, token);
                }
                catch (SmtpException se)
                {
                    //记录日志，记录信息包含失败原因，发送对象邮件地址
                    LogEntry log = new LogEntry();
                    log.Message = se.Message;
                    Dictionary<string, object> errorInfo = new Dictionary<string, object>();
                    errorInfo.Add("DateTime", DateTime.Now);
                    errorInfo.Add("Mail To: ", mailTo);
                    errorInfo.Add("Message: ", sendMessage);
                    errorInfo.Add("StackTrace: ", se.StackTrace);
                    log.ExtendedProperties = errorInfo;
                    log.Categories.Add("Error");
                    Logger.Write(log);
                    return;
                }
            }
        }