Mail Abuse Prevention System (MAPS)

The Mail Abuse Prevention System (MAPS) is a service used by email providers to identify and block spam or malicious emails. It maintains a database of known sources of unwanted or harmful email, such as spam senders or compromised networks. When an email is received, the recipient’s email system can check this database to see if the sender’s address or IP is listed. If it is, the email is flagged or blocked, helping to protect users from spam, fraud, and malware. MAPS helps keep email communication safer and cleaner by leveraging community-shared data about email abuse.