想要從asp.net網站發送自動郵件

Question

我想從我的asp.net網站發送自動郵件，只要有人點擊提交按鈕輸入一些值。我用C＃創建了一些代碼。它沒有顯示任何錯誤，但也沒有發送任何郵件。我正在使用網絡憑證中組織的郵件服務器的IP地址。我不確定如何爲我用來發送郵件的電子郵件地址提供密碼。我正在與你分享我的代碼。

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.Data.SqlClient; 
using System.ComponentModel;// for backgroundworker class 
using System.Net; 
using System.Net.Mail; 
using System.Threading; 

public partial class Contact : System.Web.UI.Page 
{ 
    protected void Page_Load(object sender, EventArgs e) 
    { 

    } 

    protected void LoginView1_ViewChanged(object sender, EventArgs e) 
    { 

    } 

    public void Button3_Click(object sender, EventArgs e) 
    { 
     using (SqlConnection connn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString)) 
     { 

      SqlCommand command = new SqlCommand(); 
      command.CommandType = System.Data.CommandType.StoredProcedure; 
      command.CommandText = "dbo.Procedure"; 

      command.Parameters.Add("@name", System.Data.SqlDbType.VarChar).Value = TextBox1.Text; 
      command.Parameters.Add("email", System.Data.SqlDbType.VarChar).Value = email.Text; 
      command.Parameters.Add("sub", System.Data.SqlDbType.VarChar).Value = sub.Text; 
      command.Parameters.Add("message", System.Data.SqlDbType.VarChar).Value = message.Text; 

      string from = "info@xxx.com"; 
      string to = "abc@xxx.com"; 
      string mailSubject = sub.Text.ToString(); 
      string mailBody = message.Text.ToString(); 
      MailMessage mess = new MailMessage(from, to, mailSubject, mailBody); 
      mess.IsBodyHtml = true; 
      SmtpClient emailClient = new SmtpClient("//xxx.xxx.x.x/", 25); //Server ip & port 
      emailClient.UseDefaultCredentials = true; 
      //System.Net.NetworkCredential SMTPUserInfo = new System.Net.NetworkCredential("", ""); 
      //emailClient.Credentials = SMTPUserInfo; 
      //emailClient.Send(mess); 

      // emailClient.Credentials = CredentialCache.DefaultNetworkCredentials; 

      try 
      { 
       emailClient.Send(mess); 
      } 
      catch (Exception ex) 
      { 
       Console.WriteLine("Exception caught in CreateTestMessage1(): {0}", 
         ex.ToString()); 
      } 

      command.Connection = connn; 
      connn.Open(); 
      command.ExecuteNonQuery(); 
      connn.Close(); 
     } 
     TextBox1.Text = ""; 
     email.Text = ""; 
     sub.Text = ""; 
     message.Text = ""; 
     lblmsg.Text = "Data entered successfully!!! Thank You for contacting us! We will get back to you as soon as possible."; 
     //Response.Write("Submitted Succesfully"); 
     Response.Redirect("~/XX.aspx"); 
    } 
} 

Answer 1

你可能要停止使用默認憑據

emailClient.UseDefaultCredentials = false; 

，並添加

emailClient.Credentials = new System.Net.NetworkCredential("yourusername", "yourpassword"); 

使用自己的憑據大多數SMTP服務器現在爲了阻止垃圾郵件阻止匿名中繼。

Answer 2

請將配置放在您的應用程序的web.config文件中。下面是如何配置的一個例子：

<system.net> 
    <mailSettings> 
     <smtp from="test@test.com"> 
     <network host="smtpserver1" port="25" userName="StackOverFlow" password="HatSoft" defaultCredentials="true" /> 
     </smtp> 
    </mailSettings> 
    </system.net> 

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