How to send an email message from "LocalHost" using C# and Asp.Net

I have written some C# code to send out an email message from a server. I can not get it to work off of my local machine. Attached is a code snippet. Does anyone have any ideas what the problem is?

// This is in the web.config ->	<add key="wireUp_SMTPServer" value="localhost"/>
protected string smtpServerStr = ConfigurationSettings.AppSettings["wireUp_SMTPServer"];
StringBuilder strMsg = new StringBuilder();
strMsg.Append("Hello this is a test");
 
MailMessage myEmailObject = new MailMessage();
myEmailObject.To = strToEmail;  // Email address not shown here
myEmailObject.From = areunMailStr;
myEmailObject.Subject = "Welcome to our site";
myEmailObject.Body = strMsg.ToString();
myEmailObject.BodyFormat = MailFormat.Html;
SmtpMail.SmtpServer = smtpServerStr;
	try
	{
	  SmtpMail.Send(myEmailObject);
	  return true;
	}
	catch
	{
	return false;
	}

Select allOpen in new window