c# - C# 和 Godaddy 服务器发送电子邮件错误

Question

这个问题已经有答案了:

C# Email sending error on Godaddy server (3 个回答)

已关闭 6 年前。

您好，我正在使用来自goodaddy的托管，我的应用程序是用c#编写的，问题是发送电子邮件时，这是我的代码

 public ResponseDto sendEmail(EmailDto emailDto) {
        try
        {
            MailMessage message = new MailMessage();
            SmtpClient client = new SmtpClient();
            message.From = new MailAddress("mail@gmail.com");
            message.Subject = "have a new mail";
            message.Body = "info: \n "
                + "name: " + emailDto.Name 
                + "\mail: "+ emailDto.Email + "\nMessage: " +
                emailDto.Message;
            message.To.Add("mail@hotmail.com");
            client.EnableSsl = true;
            client.UseDefaultCredentials = false;

            client.Port = 587;
            client.Host = "smtp.gmail.com";
            client.Credentials = new System.Net.NetworkCredential("mail@gmail.com", "(password");
            client.Send(message);
        }
        catch (Exception e) {
            return new ResponseDto
            {
                message = e.ToString()
              ,
                Success = false
            };
        }

        return new ResponseDto
        {
            message = "success",
            Success = true
        };

    }

我发送邮件的邮箱是gmail，错误是下一个

System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions 74.125.199.109:587 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception) --- End of inner exception stack trace --- at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, GeneralAsyncDelegate asyncCallback) at System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) at System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) at System.Net.Mail.SmtpConnection.GetConnection(ServicePoint servicePoint) at System.Net.Mail.SmtpTransport.GetConnection(ServicePoint servicePoint) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message) --- End of inner exception stack trace --- at System.Net.Mail.SmtpClient.Send(MailMessage message) at Core.EmailManager.sendEmail(EmailDto emailDto)

可能是什么问题？

Answer 1

我解决了，我希望这个问题可以帮助别人，代码在这里:

 public ResponseDto sendEmail(EmailDto emailDto) {
        try
        {
            MailMessage message = new MailMessage();
            SmtpClient client = new SmtpClient();
            message.From = new MailAddress("mail@gmail.com");
           message.Subject = "have a new mail";
        message.Body = "info: \n "
            + "name: " + emailDto.Name 
            + "\mail: "+ emailDto.Email + "\nMessage: " +
            emailDto.Message;
            message.To.Add("mail@hotmail.com");
             client.EnableSsl = false;
             client.UseDefaultCredentials = false;
             client.Port = 25;
             client.Host = "relay-hosting.secureserver.net";
             client.Send(message);

        }
        catch (Exception e) {
            return new ResponseDto
            {
                message = e.ToString()
              ,
                Success = false
            };
        }

        return new ResponseDto
        {
            message = "success",
            Success = true
        };

    }

问题是其他中继/smtp 服务器无法在我们的托管上工作。我不需要指定密码。我更改了端口和主机，这是帮助我的链接

https://au.godaddy.com/community/Developer-Cloud-Portal/Unable-to-send-email-from-C-net-application-from-website/td-p/2394