Anti-spam refers to software or techniques that block or prevent unwanted emails (spam) from reaching an inbox or computer. Some synonyms for anti-spam include spam filter, spam blocker, spam detector, spam assassin, email filter, email blocker, email protector, and email guard. These tools work by analyzing incoming emails for specific characteristics that are common to spam, such as certain keywords or suspicious links. The main objective of anti-spam techniques is to prevent users from being exposed to unwanted or malicious content that can harm their computers or compromise their personal information. Synonyms for anti-spam are important for effective communication about technology and cybersecurity.