PHP submits forms to send emails. The mini version of the mail system is often used by friends on websites. When making a guestbook, you need to use a form to send emails to customer emails. With our small code, it is convenient to specify the specific field names. You can look at the style and customize it by yourself. Just imitate it. You can add or delete it. It is very convenient to borrow a third-party SMTP server. You don’t need PHP server components. The specific configuration instructions are explained in the program file. However, it is also important to remember the server environment.
