Howto Send E-mail from an ASPX Page
NOTE: the concepts presented in this article are now considered obsolete possibly because better alternatives are available.
PrerequisitesThis article (and many others on this site) assumes the following prerequisites:
- Visual Studio .NET 2002 or 2003
- The .NET Framework 1.0 or 1.1
Please note: this article was written against .NET 1.x; many years ago. For a .NET 2.0 or later solution, check out www.systemnetmail.com/.
Sending e-mailTo send an E-mail from an ASPX page, you'll need to use the System.Web.Mail namespace that contains the MailMessage and SmtpMail classes. The MailMessage class represent the actual message and the SmtpMail class is used to send the message to one or more recipients.
Let's take a look at the code of a simple example to see how it works. We'll start with the ASPX file, called SendMail.aspx:
<%@ Page language="c#" Codebehind="SendMail.aspx.cs"
AutoEventWireup="false" Inherits="Demos.Email.SendMail" %>
<!doctype html public "-//w3c//dtd html 4.0 transitional//en" >
<title>Send an E-mail with ASP.NET</title>
<form id="frmSendEmail" method="post" runat="server">
Your name: <asp:textbox id="txtName" runat="server"></asp:textbox><br>
Your message: <asp:textbox id="txtMessage"
<asp:button id="btnSubmit" runat="server"
<asp:label id="lblErrorMessage" runat="server"
The important bits of this example can be found in the Code Behind file for this page, SendMail.aspx.cs:
using System.Web.Mail; namespace Demos.Email
/// Simple demo class that sends an e-mail
public class SendMail : System.Web.UI.Page
protected System.Web.UI.WebControls.TextBox txtName;
protected System.Web.UI.WebControls.Label lblErrorMessage;
protected System.Web.UI.WebControls.TextBox txtMessage;
private void Page_Load(object sender, System.EventArgs e)
string name = txtName.Text;
string message = txtMessage.Text;
if(name.Length == 0 || message.Length ==0)
lblErrorMessage.Text = "Please type your name and a message";
lblErrorMessage.Visible = true;
message = "This e-mail was sent by " + name + "\r\n" + message;
MailMessage objMail = new MailMessage();
objMail.From = "Your From Name <You@YourProvider.com>";
objMail.To = "Your To Name <You@YourProvider.com>";
objMail.Subject = "Response from website";
objMail.Body = message;
SmtpMail.SmtpServer = "smtp.YourProvider.com";
} #region Web Form Designer generated code
override protected void OnInit(EventArgs e)
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
private void InitializeComponent()
this.Load += new System.EventHandler(this.Page_Load);
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