通過SMTP發送電子郵件

Question

我在我的網站上有聯繫頁面，我希望用戶輸入他們的姓名和電子郵件ID（無密碼）並按下按鈕發送電子郵件。

我做了谷歌和所有的解決方案我收到需要用戶密碼，

public static void SendMessage(string subject, string messageBody, string toAddress, string ccAddress, string fromAddress) 
{ 
    MailMessage message = new MailMessage(); 
    SmtpClient client = new SmtpClient(); 

    // Set the sender's address 
    message.From = new MailAddress(fromAddress); 

    // Allow multiple "To" addresses to be separated by a semi-colon 
    if (toAddress.Trim().Length > 0) 
    { 
     foreach (string addr in toAddress.Split(';')) 
     { 
      message.To.Add(new MailAddress(addr)); 
     } 
    } 
    // Allow multiple "Cc" addresses to be separated by a semi-colon 
    if (ccAddress.Trim().Length > 0) 
    { 
     foreach (string addr in ccAddress.Split(';')) 
     { 
      message.CC.Add(new MailAddress(addr)); 
     } 
    } 
    // Set the subject and message body text 
    message.Subject = subject; 
    message.Body = messageBody;  

    // smtp settings 
    var smtp = new System.Net.Mail.SmtpClient(); 
    { 
     smtp.Host = "smtpHost"; 
     smtp.Port =portno; 
     smtp.EnableSsl = true; 
     smtp.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network; 
     smtp.Credentials = new NetworkCredential("fromEmail", "fromPassword"); 
     smtp.Timeout = 20000; 
    } 

    // Send the e-mail message 
    smtp.Send(message); 
} 

但我不希望強迫用戶輸入密碼。有沒有其他解決方案使用SMTP？

我得到的錯誤是A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

Answer 1

我有我的實用工具類此功能，它就像一個魅力。

public static bool SendMail(string Email, string MailSubject, string MailBody) 
    { 
     bool isSent = false, isMailVIASSL = Convert.ToBoolean(ConfigurationManager.AppSettings["MailServerUseSsl"]); 

     string mailHost = ConfigurationManager.AppSettings["MailServerAddress"].ToString(), 
     senderAddress = ConfigurationManager.AppSettings["MailServerSenderUserName"].ToString(), 
     senderPassword = ConfigurationManager.AppSettings["MailServerSenderPassword"].ToString(); 

     int serverPort = Convert.ToInt32(ConfigurationManager.AppSettings["MailServerPort"]); 

     MailMessage msgEmail = new MailMessage(new MailAddress(senderAddress), new MailAddress(Email)); 
     using (msgEmail) 
     { 
      msgEmail.IsBodyHtml = true; 
      msgEmail.BodyEncoding = System.Text.Encoding.UTF8; 
      msgEmail.Subject = MailSubject; 
      msgEmail.Body = MailBody; 

      using (SmtpClient smtp = new SmtpClient(mailHost)) 
      { 
       smtp.UseDefaultCredentials = false; 
       smtp.EnableSsl = isMailVIASSL; 
       smtp.Credentials = new NetworkCredential(senderAddress, senderPassword); 
       smtp.Port = serverPort; 
       try 
       { 
        smtp.Send(msgEmail); 
        isSent = true; 
       } 
       catch (Exception ex) 
       { 
        throw ex; 
       } 
      } 
     } 
     return isSent; 
    } 

<!-- Mail Server Settings --> 
<add key="MailServerAddress" value="smtp.gmail.com" /> 
<add key="MailServerPort" value="25" /> 
<add key="MailServerSenderUserName" value="username@gmail.com" /> 
<add key="MailServerSenderPassword" value="password" /> 
<add key="MailServerUseSsl" value="True" />