Send Email using Gmail SMTP server - ASP.NET
 Send Email using Gmail SMTP server-ASP.NET    What is an SMTP server?  (pronounced as separate letters) Short for S imple M ail T ransfer P rotocol,  a protocol for sending e-mail messages between servers. Most e-mail systems that send mail over the Internet use SMTP to send messages from one server to another; the messages can then be retrieved with an e-mail client using either POP or IMAP.  In addition, SMTP is generally used to send messages from a mail client to a mail server. This is why you need to specify both the POP or IMAP server and the SMTP server when you configure your e-mail application.  Let's see one example in ASP.NET 2.0 (Web Application)   In WebMailSend.aspx.cs  file  You have to import this namespace for MailMessage.  using  System.Net.Mail;  protected  void  btnSend_Click( object  sender, EventArgs e) { try  {     MailMessage mail = new  MailMessage();     mail.IsBodyHtml = true ;     mail.To.Add(txtEmail.Text);     mail.Subject = txtSubject.Text;     mail....