In the past, people rarely received spam on their computers. Now, as long as they have their own e-mail addresses, once people turn on their computers, they can receive a few or even dozens of spam messages every day, including various advertisements and boring content. 
Currently, the e-mail address detection software is very powerful, but the preventive software and measures are weak.
 we should formulate rules to limit various spam and study effective methods of anti-spam.