Pardon me if this is an obvious posting, but the Search functinality for these forums isn't returning any hits.  I'm trying to setup my Host Settings/SMTP Server Settings to send mail.  I'm entering the exact same Server, Username and passord as I use on my current custom ASP.NET web site.  My site works, my test DNN site doesn't.  I'm getting a very generic (and hardly helpful) "Failure sending mail." message.

Is there anywhere I need to hack into to set the port which is not the default 25?

Thanks,

Brian

beaudetious,

There is a possibility that your local windows firewall, local policy or group policy is blocking your ability to send emails.  If you have installed your "test" version on a Windows XP machine and trying to shoot it to ANY smtp server (local or remote) this policy might be blocking it.

I created a simple C# application to test each machine if I could send an email from that machine.  From our company servers, we could do this just fine.  However, if we did this from a test instance (a developer's machine), it failed every time.  We traced this back to the group policy in place that blocked all port 25 traffic.

Hope this helps.  The C# application code and the Directions to allow test emails from desktops are below.

-Ryan

Directions:

 Control Panel → Windows Firewall → Advanced → Network Connection Settings → Settings → Internet Mail Server

 Control Panel → Windows Firewall → Exceptions → Add Port → Type: SMTP → Port: 25

C# Test Application (Windows Application)

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using
namespace
{
  SendMailTest	publicpartialclass Form1 : Form
{
 
{
InitializeComponent();
}
 
{
 	public Form1()		privatevoid button1_Click(object sender, EventArgs e)			// SmtpClient is used to send the e-mail
 
mailClient.Send(
}
}
}			SmtpClient mailClient = newSmtpClient("[SMTP SERVER ADDRESS]");"[FROM EMAIL]", "[TO EMAIL]", "[SUBJECT]", "[BODY]");
  System.Net.Mail;