Asian Journal of Advances in Research

In practically every industry today, from business to education, emails/messages are used. Ham and spam are the two subcategories of emails/messages. Email or message spam, often known as junk email or unwelcome email, is a kind of message that can be used to hurt any user by sapping their time and computing resources and stealing important data. Spam messages volume is rising quickly day by day. Today's email and IoT service providers face huge and massive challenges with spam identification and filtration. Spam filtering is one of the most important and well-known methods among all the methods created for identifying and preventing spam. This has been accomplished using a number of machine learning and deep learning techniques, including Naive Bayes, decision trees, neural networks, and random forests. By categorizing them into useful groups, this study surveys the machine learning methods used for spam filtering. Based on accuracy, precision, recall, etc., a thorough comparison of different methods is also made.