mail-delivery-system.info presents itself as a educational platform, focusing on phishing simulation training. This domain is operated by Proofpoint as part of its Security Awareness Training platform. It is used to host simulated phishing landing pages designed to educate employees on identifying and avoiding cyber threats. It claims to be operated by Proofpoint, Inc., a subsidiary of Proofpoint, Inc..
cybersecurity trainingphishing simulationsecurity awarenessemployee education