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;using System.Web.Mail; namespace Test{ public partial class SendMail : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void btnSubmit_Click(object sender, EventArgs e) { try { MailMessage MyMessage = new MailMessage(); MyMessage.From = txtFrom.Text.Trim(); MyMessage.To = txtTo.Text.Trim(); MyMessage.Subject = txtSubject.Text.Trim(); MyMessage.Body = txtBody.Text.Trim(); MyMessage.Priority = MailPriority.High; MailAttachment mailAttachments = new MailAttachment(txtAttachmentPath.Text); MyMessage.Attachments.Add(mailAttachments); SmtpMail.Send(MyMessage); litStatus.Text = "Message Sent"; } catch (Exception ex) { litStatus.Text = ex.ToString(); } } }}