Antispam is security software designed to protect users from unsolicited messages (spam). Antispam is used to identify and eliminate unwanted messages, which are usually identified based on the lists of senders of unsolicited content (Spam blacklists) or list of IP addresses that are used to send spams out.
How to use antispam?
Antispam is mostly installed in the e-mail (in the e-mail server or e-mail client) or it is part of the antivirus and internet security software. In practice, organizations typically use it in combination with other methods of security software.