title: System.Net.Mail.SmtpException: Failure sending mail. No connection could be made because the target machine actively refused it 127.0.0.1:25
body: <p>I have set up a test email form submission and continue to get the following error message no matter how many ways i try</p>
  
  <blockquote>
    <p>System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 127.0.0.1:25 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket&amp; socket, IPAddress&amp; address, ConnectSocketState state, IAsyncResult asyncResult, Exception&amp; exception) --- End of inner exception stack trace --- at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress&amp; address, Socket&amp; abortSocket, Socket&amp; 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 frmQuote.btnSubmit_Click(Object sender, EventArgs e) in c:\Users\jack\Documents\Visual Studio 2013\WebSites\firstarPrecision\frmQuote.aspx.cs:line 28</p>
  </blockquote>
  
  <p>If it is needed here is the C# code that i am using to submit the form</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Net.Mail;
  using System.Web;
  using System.Web.UI;
  using System.Web.UI.WebControls;
  
  public partial class frmQuote : System.Web.UI.Page
  {
      protected void Page_Load(object sender, EventArgs e)
      {
  
      }
      protected void btnSubmit_Click(object sender, EventArgs e)
      {
          try
          {
              using (MailMessage message = new MailMessage())
              {
                  message.From = new MailAddress(txtEmail.Text.ToString());
                  message.To.Add(new MailAddress("swdlodonnell@gmail.com"));
                  //message.CC.Add(new MailAddress("copy@domain.com"));
                  message.Subject = "Quote request from " + txtCompanyName.Text.ToString();
                  message.Body = txtContact.Text.ToString();
                  SmtpClient client = new SmtpClient();
                  client.Host = "127.0.0.1";
                  client.Send(message);
              }
          }
          catch(Exception ex) {
              Response.Write(ex);
          }
      }
  }
  </code></pre>
  
  <p>I have tried several ways and it seems to me like i am being blocked by an antivirus/firewall, thanks.</p>