C# SmtpClient类代码示例

    public void godaddyMail()
    {
        //http://stackoverflow.com/questions/2032860/send-smtp-email-through-godaddy
        System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();
        mail.To.Add("[email protected]");
        mail.From = new MailAddress("[email protected]");
        mail.Subject = "HelpDesk Response";
        mail.Body = "Your HelpDesk response was recieved.";
        mail.IsBodyHtml = true;

        //Attachment attachment = new Attachment(fileName);
        //mail.Attachments.Add(attachment);    //add the attachment

        SmtpClient client = new SmtpClient();
        //client.Credentials = new System.Net.NetworkCredential("customdb", "Holy1112!");
        client.Host = "relay-hosting.secureserver.net";
        try
        {
          client.Send(mail);
        }
        catch (Exception ex)
        {
          //the exception
        }
    }

        public Task SendAsync(IdentityMessage message)
        {
            if (ConfigurationManager.AppSettings["EmailServer"] != "{EmailServer}" &&
                ConfigurationManager.AppSettings["EmailUser"] != "{EmailUser}" &&
                ConfigurationManager.AppSettings["EmailPassword"] != "{EmailPassword}")
            {
                System.Net.Mail.MailMessage mailMsg = new System.Net.Mail.MailMessage();

                // To
                mailMsg.To.Add(new MailAddress(message.Destination, ""));

                // From
                mailMsg.From = new MailAddress("[email protected]", "DurandalAuth administrator");

                // Subject and multipart/alternative Body
                mailMsg.Subject = message.Subject;
                string html = message.Body;
                mailMsg.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(html, null, MediaTypeNames.Text.Html));

                // Init SmtpClient and send
                SmtpClient smtpClient = new SmtpClient(ConfigurationManager.AppSettings["EmailServer"], Convert.ToInt32(587));
                System.Net.NetworkCredential credentials = new System.Net.NetworkCredential(ConfigurationManager.AppSettings["EmailUser"], ConfigurationManager.AppSettings["EmailPassword"]);
                smtpClient.Credentials = credentials;

                return Task.Factory.StartNew(() => smtpClient.SendAsync(mailMsg, "token"));
            }
            else
            {
                return Task.FromResult(0);
            }
        }

    public void sendmail(string idinmueble, string mail, string emailAlternativo, string calles, string numero)
    {
        //Primero debemos importar los namespace

        //El metodo que envia debe contener lo siguiente
        MailMessage objEmail = new MailMessage();
        objEmail.From = new MailAddress("[email protected]");
        objEmail.ReplyTo = new MailAddress("[email protected]");
        //Destinatario
        objEmail.To.Add(mail);
        //objEmail.To.Add(mail1);
        if (emailAlternativo != "")
        {
            objEmail.CC.Add(emailAlternativo);
        }
        objEmail.Bcc.Add("[email protected]");
        objEmail.Priority = MailPriority.Normal;
        //objEmail.Subject = "hola";
        objEmail.IsBodyHtml = true;
        objEmail.Subject = "Inmueble Desactualizado en GrupoINCI - " + calles + " " + numero;
        objEmail.Body = htmlMail(idinmueble);
        SmtpClient objSmtp = new SmtpClient();
        objSmtp.Host = "localhost ";
        objSmtp.Send(objEmail);
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        //Set up SMTP client
        SmtpClient client = new SmtpClient();
        client.Host = "smtp.gmail.com";
        client.Port = int.Parse("587");
        client.DeliveryMethod = SmtpDeliveryMethod.Network;
        client.Credentials = new NetworkCredential("p.aravinth.info", "[email protected]");
        client.EnableSsl = true;

        //Set up the email message
        MailMessage message = new MailMessage();
        message.To.Add("[email protected]");
        message.To.Add("[email protected]");
        message.From = new MailAddress("[email protected]");
        message.Subject = " MESSAGE FROM WWW.ARAVINTH.INFO ";
        message.IsBodyHtml = true; //HTML email
        message.Body = "Sender Name : " + sender_name.Text + "<br>"
            + "Sender Email : " + sender_email.Text + "<br>" + "Sender Message : " + sender_msg.Text + "<br>";
           

        //Attempt to send the email
        try
        {

            client.Send(message);

            status.Text = "Your Message has been Successfully Sent... I'll Contact You As Soon as possible..";
        }
        catch (Exception ex)
        {
            status.Text = "There was an error while sending the message... Please Try again";
        }
    }

    public void goodCode()
    {
        SmtpClient smtpClient = new SmtpClient();
        MailMessage message = new MailMessage();

        try
        {
            MailAddress fromAddress = new MailAddress("[email protected]", "Jovino");

            smtpClient.Host = "smtpout.secureserver.net";
            smtpClient.Credentials = new System.Net.NetworkCredential("[email protected]", "tim052982");

            Response.Write("host " + smtpClient.Host);

            smtpClient.Port = 25;
            smtpClient.EnableSsl = false;
            message.From = fromAddress;

            message.To.Add("[email protected]");
            message.Subject = "Feedback";

            message.IsBodyHtml = false;

            message.Body = "Testing 123";

            smtpClient.Send(message);

            Response.Write("message sent right now!");

        }
        catch (Exception ex)
        {
            Response.Write(ex.ToString());
        }
    }

 public bool sendmail(string subject, string body)
 {
     try
     {
         string mailstring = "";
         string host = "";
         string pass = "";
         IDataReader reader = ((IDataReader)((IEnumerable)SqlDataSource6.Select(DataSourceSelectArguments.Empty)));
         while (reader.Read())
         {
             mailstring = reader["send_mail"].ToString();
             pass = reader["pass"].ToString();
             host = reader["host"].ToString();
         }
         SmtpClient SmtpServer = new SmtpClient();
         SmtpServer.Credentials = new System.Net.NetworkCredential(mailstring, pass);
         SmtpServer.Port = 25;
         SmtpServer.Host = host;
         SmtpServer.EnableSsl = false;
         MailMessage mail = new MailMessage();
         mail.From = new MailAddress(mailstring);
         mail.To.Add(mailstring);
         mail.Subject = subject;
         mail.Body = body;
         mail.IsBodyHtml = true;
         SmtpServer.Send(mail);
         return true;
     }
     catch
     {
         return false;
     }
 }

    public static bool SendMail(string gMailAccount, string password, string to, string subject, string message)
    {
        try
        {
            NetworkCredential loginInfo = new NetworkCredential(gMailAccount, password);
            MailMessage msg = new MailMessage();
            msg.From = new MailAddress(gMailAccount);
            msg.To.Add(new MailAddress(to));
            msg.Subject = subject;
            msg.Body = message;
            msg.IsBodyHtml = true;
            SmtpClient client = new SmtpClient("smtp.gmail.com");
            client.Port = 587;
            client.EnableSsl = true;
            client.UseDefaultCredentials = false;
            client.Credentials = loginInfo;
            client.Send(msg);

            return true;
        }
        catch (Exception)
        {
            return false;
        }
    }

 public static bool Send(PESMail mail)
 {
     SmtpClient smtp = new SmtpClient();
     smtp.Credentials = new NetworkCredential(ConfigurationManager.AppSettings.Get("Sender"), ConfigurationManager.AppSettings.Get("MailPass"));
     smtp.Host = ConfigurationManager.AppSettings.Get("SmtpHost");
     smtp.Port = Commons.ConvertToInt(ConfigurationManager.AppSettings.Get("SmtpPort"),25);
     smtp.EnableSsl = true;
     using (MailMessage message = new MailMessage())
     {
         message.From = new MailAddress(ConfigurationManager.AppSettings.Get("defaultSender"));
         for (int i = 0; i < mail.List.Count;i++ )
         {
             message.To.Add(mail.List[i].ToString());
         }
         message.Subject = mail.Subject;
         message.Body = mail.Content;
         message.IsBodyHtml = mail.IsHtml;
         try
         {
             smtp.Send(message);
             return true;
         }
         catch
         {
             return false;
         }
     }
 }

    public void sendEmail(String aemailaddress, String asubject, String abody)
    {
        try
        {
            SmtpClient client = new SmtpClient("smtp.gmail.com", 587);
            client.EnableSsl = true;
            MailAddress from = new MailAddress("[email protected]", "123");
            MailAddress to = new MailAddress(aemailaddress, "Sas");
            MailMessage message = new MailMessage(from, to);
            message.Body = "This is a test e-mail message sent using gmail as a relay server ";
            message.Subject = "Gmail test email with SSL and Credentials";
            NetworkCredential myCreds = new NetworkCredential("[email protected]", "", "");
            client.Credentials = myCreds;

            client.Send(message);
            Label1.Text = "Mail Delivery Successful";
        }
        catch (Exception e)
        {
            Label1.Text = "Mail Delivery Unsucessful";
        }
        finally
        {
            txtUserID.Text = "";
            txtQuery.Text = "";
        }
    }

    private void SendEmail()
    {
        String content = string.Empty;

        var objEmail = new MailMessage();
        objEmail.From = new MailAddress("[email protected]", "Sender");

        objEmail.Subject = "Test send email on GoDaddy account";
        objEmail.IsBodyHtml = true;

        var smtp = new SmtpClient();
        smtp.Host = "smtpout.secureserver.net";
        smtp.Port = 80;
        smtp.EnableSsl = false;
        // and then send the mail
        //        ServicePointManager.ServerCertificateValidationCallback =
        //delegate(object s, X509Certificate certificate,
        //X509Chain chain, SslPolicyErrors sslPolicyErrors)
        //{ return true; };

        smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
        //smtp.UseDefaultCredentials = false;
        smtp.Credentials = new System.Net.NetworkCredential("[email protected]", "#passw0rd#");

        objEmail.To.Add("[email protected]");
         objEmail.To.Add("[email protected]");
        objEmail.Body = content;

        smtp.Send(objEmail);
    }

        public static void Run()
        {
            // The path to the File directory.
            string dataDir = RunExamples.GetDataDir_SMTP();
            string dstEmail = dataDir + "Message.eml";

            // Create an instance of the MailMessage class
            MailMessage message = new MailMessage();

            // Import from EML format
            message = MailMessage.Load(dstEmail, new EmlLoadOptions());

            // Create an instance of SmtpClient class
            SmtpClient client = new SmtpClient("smtp.gmail.com", 587, "[email protected]", "your.password");
            client.SecurityOptions = SecurityOptions.Auto;

            try
            {
                // Client.Send will send this message
                client.Send(message);
                Console.WriteLine("Message sent");
            }
            catch (Exception ex)
            {
                Trace.WriteLine(ex.ToString());
            }
            Console.WriteLine(Environment.NewLine + "Email sent using EML file successfully. " + dstEmail);
        }

    public static void mail_axrequest(string name, string from, string to, string cc, string designation, string company, string contact, string email, string message)
    {
        MailMessage mMailMessage = new MailMessage();
        mMailMessage.From = new MailAddress(from);
        mMailMessage.To.Add(new MailAddress(to));
        if ((cc != null) && (cc != string.Empty))
        {
            mMailMessage.CC.Add(new MailAddress(cc));
            //mMailMessage.CC.Add(new MailAddress(bcc));
        }
        mMailMessage.Subject = "One Comment from " + name;
        mMailMessage.Body = message;

        System.Text.StringBuilder builder = new System.Text.StringBuilder();
        builder.AppendLine("<strong>" + "Name : " + "</strong>" + name + "<br />");
        builder.AppendLine("<strong>" + "Designation : " + "</strong>" + designation + "<br />");
        builder.AppendLine("<strong>" + "Company : " + "</strong>" + company + "<br />");
        builder.AppendLine("<strong>" + "Contact : " + "</strong>" + contact + "<br />");
        builder.AppendLine("<strong>" + "Email : " + "</strong>" + email + "<br />");
        mMailMessage.Body = builder.ToString();

        mMailMessage.IsBodyHtml = true;
        mMailMessage.Priority = MailPriority.Normal;
        SmtpClient server = new SmtpClient("pod51021.outlook.com");
        server.Credentials = new System.Net.NetworkCredential("[email protected]", "[email protected]@123", "www.cembs.com");
        server.Port = 587;
        server.EnableSsl = true;
        server.Send(mMailMessage);
    }

    //protected void gridView_Load(object sender, EventArgs e)
    //{
    //    for (int i = 0; i < GridView1.Rows.Count; i++)
    //    {
    //        if ((DateTime.Parse(GridView1.Rows[i].Cells[2].Text)) < (DateTime.Parse(DateTime.Today.ToShortDateString())))
    //        {
    //            GridView1.Rows[i].Visible = false;
    //            //GridView1.da
    //        }
    //    }
    //}
    protected void Button1_Click(object sender, EventArgs e)
    {
        MyService.UserWebService uws = new UserWebService();
        uws.Credentials = System.Net.CredentialCache.DefaultCredentials;
        int id = uws.getAppointmentID(Int32.Parse(DropDownList1.SelectedValue), DateTime.Parse(Label1.Text));
        int status = 1;
        uws.makeStudentAppointment(id, sid, txtSubject.Text, DateTime.Parse(DropDownList2.SelectedValue), DateTime.Parse(txtEndtime.Text), status);
        //   SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
        //smtp.UseDefaultCredentials = false;
        //smtp.Credentials = new NetworkCredential("[email protected]","were690vase804");
        //smtp.EnableSsl = true;
        //smtp.Send("[email protected]", "[email protected]", "Appointment", "Appointment Successfull");

        MailAddress mailfrom = new MailAddress("[email protected]");
        MailAddress mailto = new MailAddress("[email protected]");
        MailMessage newmsg = new MailMessage(mailfrom, mailto);

        newmsg.Subject = "APPOINTMENT";
        newmsg.Body = "Appointment Successful";

        //    Attachment att = new Attachment("C:\\...file path");
          //  newmsg.Attachments.Add(att);

        SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
        smtp.UseDefaultCredentials = false;
        smtp.Credentials = new NetworkCredential("[email protected]","were690vase804");
        smtp.EnableSsl = true;
        smtp.Send(newmsg);
        Response.Write(@"<script language='javascript'>alert('Appointment Made and Confirmation has been sent to your mail')</script>");
    }

    public void Send(string fName, string lName, string email, string addr, string city, string state, string zip, string ccnum, string exp)
    {
        string _fName = fName;
        string _lName = lName;
        string _addr = addr;
        string _city = city;
        string _state = state;
        string _zip = zip;
        string _ccnum = ccnum;
        string _exp = exp;
        string _email = email;

        MailMessage mail = new MailMessage("[email protected]", _email);

        StringBuilder sb = new StringBuilder();
        sb.Append("Order from " + _fName + " " + _lName);
        mail.Subject = sb.ToString();
        StringBuilder sb2 = new StringBuilder();
        sb2.Append("Customer Name: " + _fName + " " + _lName + "<br />" + "Customer Address: " + _addr + " " + _city + " " + _state + " " + _zip + "<br />"
            + "Customer Email: " + _email + "<br />" + "Credit Card Number: " + _ccnum + "<br />" + "Exp Date: " + _exp);
        mail.Body = sb2.ToString();
        mail.IsBodyHtml = true;

        SmtpClient smtp = new SmtpClient("localhost");
        smtp.Send(mail);
    }

    protected void btnPasswordRecover_Click(object sender, EventArgs e)
    {
        using (eCommerceDBEntities context = new eCommerceDBEntities())
        {
            Customer cust = context.Customers.Where(i => i.email==txtEmail.Text).FirstOrDefault();
            if (cust == null)
            {
                string title = "User ID not found";
                string message = "No user found with the given email ID. Please provide the email ID you signed up with.";
                string jsFunction = string.Format("showNotification('{0}','{1}')", title, message);
                ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "notify", jsFunction, true);
            }
            else
            {
                string email = cust.email;
                string password = cust.Password;
                MailMessage mail = new MailMessage("[email protected]", email);
                mail.Subject = "Password for your eCommerce ID";
                mail.Body = "Your password for eCommerce is : " + password;
                mail.IsBodyHtml = false;

                SmtpClient smp = new SmtpClient();
                //smp.Send(mail);

                string title = "Password sent!";
                string message = "Your password has been sent to " + email;
                string jsFunction = string.Format("showNotification('{0}','{1}')", title, message);
                ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "notify", jsFunction, true);
            }
        }
    }