What Is a Spam Filter?

There is no uniform definition of spam, which is generally understood as "unsolicited mail." There are also some spam messages because the attachments contain viruses, or the links contained are a virus website. Spam filtering is Identify which of the received messages are completely meaningless to the recipient, and block, delete, etc.

Spam filtering

There is no uniform definition of spam, which is generally understood as "unsolicited mail." There are also some spam messages because the attachments contain viruses, or the links contained are a virus website. Spam filtering is Identify which of the received messages are completely meaningless to the recipient, and block, delete, etc.

Chinese name

Spam filtering

Background settings

Spam is generally characterized by bulk sending. Its content includes money-making information, adult advertisements, commercial or personal website advertisements, e-magazines, serial letters, etc. Spam can be divided into benign and malignant. Benign spam is an information mail that has little effect on the recipient, such as various promotional advertisements. Malicious spam is destructive email.

Some spamming organizations or illegal information disseminators, in order to distribute information in a large area, often use multiple machines to send mail to attack the mail server at the same time, causing a large amount of bandwidth loss to the mail server and seriously interfering with the normal mail delivery jobs.