EMAIL SPAM DETECTION SYSTEM
Spam filters detect unsolicited, unwanted, and virus-infested email (called spam) and stop it from getting into email inboxes. Internet Service Providers (ISPs) use spam filters to make sure they aren’t distributing spam. Small- to medium- sized businesses (SMBs) also use spam filters to protect their employees and networks. Spam filters are applied to both inbound email (email entering the network) and outbound email (email leaving the network). ISPs use both methods to protect their customers. SMBs typically focus on inbound filters. There are many spam filtering solutions available. They can be hosted in the “cloud,” on computer servers, or integrated into email software such as Microsoft Outlook. How do spam filters work? Spam filters use “heuristics” methods, which means that each email message is subjected to thousands of predefined rules (algorithms). Each rule assigns a numerical score to the probability of the message being spam, and if the score passes a certain threshold t
