The complete form of MAPS is Mail Abuse Protection System 1586, in the defined transitive sense meaning 1a English Language Learners Map Definition (Input 2 of 2) The Mail Abuse Prevention System (MAPS) is a system that provides anti-spam support by managing a DNS-based list of black holes (DNSBL). | of the e-mail abuse protection system Multidisciplinary Association for Psychedelic Studies. .
