You can send email using the system.web.mail class in your ASP.NET project, use the below sample code. you can refer to more details about the system.web.mail class here.
<% @Page Language=”C#” %>
<% @Import Namespace=”System.Web.Mail” %>
<%
MailMessage msgMail = new MailMessage();
// Receiver’s email address …
msgMail.To = “Recipient Email Address”;
// Sender’s email address …
msgMail.From = “Sender’s email address”;
// Subject line of email …
msgMail.Subject = “Subject of an email”;
// Body format – HTML or TEXT …
msgMail.BodyFormat = MailFormat.Text;
// Content of your email …
msgMail.Body = “Body contents”;
// If you want to add attachments, use this line …
msgMail.Attachments.Add(new MailAttachment(“c:\shane.xls”));
// Following 3 lines are used for SMTP Authentication …
msgMail.Fields.Add(“http://schemas.microsoft.com/cdo/configuration/smtpauthenticate”, “1”);
msgMail.Fields.Add(“http://schemas.microsoft.com/cdo/configuration/sendusername”, YOUR EMAIL ADDRESS);
msgMail.Fields.Add(“http://schemas.microsoft.com/cdo/configuration/sendpassword”, YOUR EMAIL ACCOUNT PASSWORD);
SmtpMail.Send(msgMail);