Send Email With Attachment In Asp.Net with C#

How to Send Email With Attachment In Asp.Net 2.0,3.5,4.0 with C# Using FileUpload Control.


Create the page as shown in the image above, put textbox for message and FileUpload Control for adding the file attachment.

Write following code in click event of Send button in Code behind(.CS) of page,

using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Net.Mail; public partial class _Default : System.Web.UI.Page {     protected void Page_Load(object sender, EventArgs e)     {     }     protected void btnSend_Click(object sender, EventArgs e)     {         MailMessage mail = new MailMessage();         mail.To.Add(txtTo.Text);         //mail.To.Add("amit_jain_online@yahoo.com");         mail.From = new MailAddress(txtFrom.Text);         mail.Subject = txtSubject.Text;         mail.Body = txtMessage.Text;         mail.IsBodyHtml = true;         if (FileUpload1.HasFile)         {             mail.Attachments.Add(new Attachment(FileUpload1.PostedFile.InputStream, FileUpload1.FileName));         }         SmtpClient smtp = new SmtpClient();         smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address         smtp.Credentials = new System.Net.NetworkCredential              ("YourGmailID@gmail.com", "YourGmailPassword");         //Or your Smtp Email ID and Password         smtp.EnableSsl = true;         smtp.Send(mail);     } }

Build and run the application to test the code.