email sender program : Unable to connect to the remote server

[bigz_1000]

Hi there, I write a program trying to send email via my gmail account, here is the code:

MailMessage message = new MailMessage();
MailAddress sender = new MailAddress("username@gmail.com");

        message.Body = "just for test";
        message.From = sender;
        foreach (String strEmail in emailList)
        {
            MailAddress reciever = new MailAddress(strEmail);
            message.Bcc.Add(reciever);
        }
            
        message.Subject = "test";
        message.SubjectEncoding = Encoding.UTF8;
        message.BodyEncoding = Encoding.UTF8;


        SmtpClient smtpClient = new SmtpClient("smtp.gmail.com", 587);
        smtpClient.EnableSsl = true;
        smtpClient.UseDefaultCredentials = false;
        smtpClient.Credentials = new NetworkCredential("username@gmail.com","password");
        
            //  smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
            try
            {
                smtpClient.Send(message);

            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
                throw new Exception(ex.Message);
            }
            finally
            {
                message.Dispose();
            }

but I have an exception in the line :"smtpClient.Send(message);" , here is it:

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 74.125.43.108:587
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, Int32 timeout, 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, Int32 timeout)
at System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback)
at System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate a

[Qendro]

Try this:

private void SendEmail(string from, string to, string subject, string body)
{
SmtpClient client = new SmtpClient("smtp.gmail.com", 587);
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.Credentials = new NetworkCredential("emailaddress", "password");
client.EnableSsl = true;

     string\[\] emails = to.Split(';');
     foreach(string s in emails)
     {
         if(s != string.Empty)
              client.Send(from, s, subject, body);
     }

}

Since i didn't watch where is your mistake, I had the method already written and just paste it here ;) Hope it will work for U too

Qendro

[bigz_1000]

Don't work, same exception! but thanks anyway

[Dave Kreskowiak]

There's nothing wrong with your code. It would appear that either your machine has a firewall that is blocking outbound port 587 or your routers or network firewall is blocking the outbound traffic.

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Dave Kreskowiak

[bigz_1000]

I think , that is the reason.thanks ! :)