C# ASPX Email File

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
	<title></title>
</head>
<body>
	<asp:label id="lblUploadStatus" runat="server"></asp:label><br />
	<asp:label id="lblEmailStatus" runat="server"></asp:label><br />
	<form id="form1" runat="server">
	<div>
		From:
		<asp:textbox id="txtFromEmail" runat="server" /><br />
		<asp:fileupload id="FileUpload1" runat="server" /><br />
		<asp:button id="btnUpload" runat="server" text="Submit" onclick="btnUpload_Click" />
	</div>
	</form>
</body>
</html>

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Mail;

public partial class _Default : System.Web.UI.Page
	{
	// Specify the path on the server to save the uploaded file to.
	public static string sSavePath = @"c:temp";

	public static string sEmailFromAddress = "Website_Online_Form@domain.com";
	public static string sEmailToAddress = "email@email.com";
	public static string sEmailToName = "John Doe";
	public static string sEmailSubject = "Test Email";
	public static string sEmailServer = "mail.domain.com";

	protected void Page_Load (object sender, EventArgs e)
		{

		}

	protected void btnUpload_Click (object sender, EventArgs e)
		{

		#region File Upload
		// Before attempting to perform operations on the file, verify that the FileUpload control contains a file.
		if (FileUpload1.HasFile)
			{
			// Get the name of the file to upload.
			String fileName = DateTime.Now.ToString("yyyy-mm-dd_HHmmss") + "_" + FileUpload1.FileName;

			// Append the name of the file to upload to the path.
			sSavePath += fileName;


			// Call the SaveAs method to save the uploaded file to the specified path.
			// This example does not perform all the necessary error checking.
			// If a file with the same name already exists in the specified path,  the uploaded file overwrites it.
			FileUpload1.SaveAs(sSavePath);

			// Notify the user of the name of the file
			// was saved under.
			lblUploadStatus.Text = "Your file was saved as " + fileName;
			}
		else
			{
			// Notify the user that a file was not uploaded.
			lblUploadStatus.Text = "You did not specify a file to upload.";
			}
		#endregion File Upload

		#region Email File
		MailMessage mailObj = new MailMessage();

		// Set the message sender
		mailObj.From = new MailAddress(sEmailFromAddress, "Web Form Mailer");

		// Set the message recipient(s)
		mailObj.To.Add(new MailAddress(sEmailToAddress, sEmailToName));
		//mailObj.CC.Add(new MailAddress(userName, "Person Name"));
		//mailObj.Bcc.Add(new MailAddress(userName, "Person Name"));

		// Set the message subject
		mailObj.Subject = sEmailSubject;

		// Set the message body type
		mailObj.IsBodyHtml = true; // true or false

		if (txtFromEmail.Text != "")
			{
			mailObj.ReplyToList.Add(txtFromEmail.Text);
			}

		SmtpClient SMTPServer = new SmtpClient(sEmailServer);
		SMTPServer.EnableSsl = true;
		//SMTPServer.Credentials = new System.Net.NetworkCredential(sEmailUsername, sEmailPassword);

		try
			{
			SMTPServer.Send(mailObj);
			lblEmailStatus.Text = "Sent!";
			System.IO.File.Delete(sSavePath);
			}
		catch (Exception ex)
			{
			lblEmailStatus.Text = ex.ToString();

			//System.IO.File.Delete(sSavePath);
			}
		#endregion Email File
		}
	}

Originally Posted on April 4, 2014
Last Updated on October 26, 2015

All information on this site is shared with the intention to help. Before any source code or program is ran on a production (non-development) system it is suggested you test it and fully understand what it is doing not just what it appears it is doing. I accept no responsibility for any damage you may do with this code.

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