Send Email from your Gmail Account using ASP.NET

MailMessage mail = new MailMessage();

//put mail from Email
 mail.From = new MailAddress("MailFrom@gmail.com");

//put mail to Email
 mail.To.Add(new MailAddress("MailTo@gmail.com"));


//you can add blank carbon copy mails here
//mail.Bcc.Add(new MailAddress("YOUR BCC EMAIL"));

//Get an attachment in attachment variable class
Attachment att = new Attachment("D:\\test.txt");

//add attachment to email
 mail.Attachments.Add(att);

//Put email subject
 mail.Subject = "Send Email with Gmail using ASP.NET";


//Put email body
 string Body = "Put your Email Body TEXT here";

// Here you can put HTML string if you want email to be sent in HTML format.   
 mail.Body = Body;
 mail.IsBodyHtml = true;

SmtpClient smtp = new SmtpClient();
smtp.Credentials = new System.Net.NetworkCredential("abc@gmail.com", "PASSWORD");

//keep ssl true if you have to send email with secured socket layer
smtp.EnableSsl = false;

smtp.Send(mail);