Email filtering tools use a combination of algorithms, machine learning, and predefined rules to sort and manage emails. They analyze various factors such as the sender's reputation, subject line, content, and attachments to categorize emails. Key mechanisms include:
- Blacklists and Whitelists: These lists determine which emails are allowed or blocked. - Content Filtering: Scanning the content for spammy keywords or phrases. - Behavioral Analysis: Monitoring user behavior to predict what emails might be important.