E-MAIL CATEGORIZATION AND SECURE COMMUNICATION USING MACHINE LEARNING AND CRYPTO-STEGANOGRAPHY. Global Journal of Educational Research, Policy and Practice, [S. l.], v. 3, n. 1, 2020. Disponível em: https://journals.gireppr.org/index.php/gjerpp/article/view/25. Acesso em: 23 feb. 2026.