發送來自發件人的電子郵件問題

Question

我試圖將電子郵件發送到g-mail，它是成功的，但發件人與收件人相同。這是爲什麼？你們能幫我嗎？

這裏是我使用的代碼：

public static void SendEmail(string _from, string _subject, string _body) 
     { 
      try 
      { 
       _message.From = new MailAddress(_from); 
       _message.To.Add(new MailAddress("fuhansxavega92@gmail.com")); 
       _message.Subject = _subject; 
       _message.Body = _body; 

       _smtp.Port = 587; 
       _smtp.Host = "smtp.gmail.com"; 
       _smtp.EnableSsl = true; 
       _smtp.UseDefaultCredentials = false; 
       _smtp.Credentials = new NetworkCredential("username", "password"); 
       _smtp.DeliveryMethod = SmtpDeliveryMethod.Network; 
       _smtp.Send(_message); 

       ShowMessageBox("Your message has been successfully sent", "Success", 2); 
      } 

      catch (Exception ex) 
      { 
       ShowMessageBox("Message : " + ex.Message + string.Empty, "Error", 1); 
      } 
     } 

void contactToolStripMenuItem_Click(object sender, EventArgs e) 
     { 
      SystemManager.SendEmail("risna22sakura@gmail.com", "Testing", "Testing"); 
     } 

這裏是結果（如圖像），我把它上傳到保管箱，因爲StackOverflow上不允許我張貼圖片：

Link

謝謝

Answer 1

public static void SendEmail(string _fromEmail, string _fromEmailPassword, string _subject, string _body) 
     { 
      try 
      { 
       _message.From = new MailAddress(_fromEmail); 
       _message.To.Add(new MailAddress("fuhansxavega92@gmail.com")); 
       _message.Subject = _subject; 
       _message.Body = _body; 

       _smtp.Port = 587; 
       _smtp.Host = "smtp.gmail.com"; 
       _smtp.EnableSsl = true; 
       _smtp.UseDefaultCredentials = false; 
       _smtp.Credentials = new NetworkCredential("_fromEmail", "_fromEmailPassword"); 
       _smtp.DeliveryMethod = SmtpDeliveryMethod.Network; 
       _smtp.Send(_message); 

       ShowMessageBox("Your message has been successfully sent", "Success", 2); 
      } 

      catch (Exception ex) 
      { 
       ShowMessageBox("Message : " + ex.Message + string.Empty, "Error", 1); 
      } 

我已經解決了這個問題，上面的代碼是它的解決方案。我的錯誤，從NetworkCredential，它應該是from the sender，而不是to the recipient以及password。

Answer 2

嘗試做這樣的事情，並從_from檢查合格參數，

//To create MailMessage object 
      string strPassword = txtPassword.Text; 
     string strEmailAddress = txtFromEmailAddress.Text; 
      MailMessage mail = new MailMessage(); 
      SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");//Set SMTP to gmail 
      mail.From = new MailAddress(strFromEmailAddress);//From side emailAdress 
      mail.To.Add(txtClientAddress.Text);//To side email Address 
      mail.Subject = strEmailTitle;//Subject to define 
      mail.Body = PreviewEmail();//Appending the body string to the Mail Body 
      mail.IsBodyHtml = true; 
      System.Net.Mail.Attachment attachment;//Set attachment object 

      mail.Attachments.Add(attachment); 
      SmtpServer.Port = 587; 


      SmtpServer.Credentials = new System.Net.NetworkCredential(strFromEmailAddress, strPassword); 
      SmtpServer.EnableSsl = true; 
      SmtpServer.Send(mail); 

Answer 3

建議你通過From和To到構造函數，像這樣：

var mail = new MailMessage("sender@hotmail.com", "recipient@hotmail.com");

To和From是隻讀的。