A system for preventing communications from detected phishing domains receives a communication associated with a particular domain. The system determines that the particular domain is a phishing domain. In response, in one embodiment, the system registers the particular domain in a Domain Name System (DNS) server to block the communication and future communications associated with the particular domain from being received at computing devices operably coupled with the DNS server. In another embodiment, the system registers the particular domain in the DNS server, such that the communication and future communications associated with the particular domain are re-routed to a particular server to monitor phishing activities implemented on the communications, where the phishing activities comprise attempting to obtain login credentials and private information associated with receivers of the communication and future communications.