Email search works by searching through a database of emails that are stored in either the user’s email account or in a server where the email service provider stores the emails. The search algorithm scans through the metadata of the email, including the sender’s address, receiver’s address, subject line, and message content. The search function can also filter the results based on various criteria, such as date range, name of the sender or receiver, and the presence of specific keywords or phrases in the email body. The search function uses natural language processing (NLP) and machine learning technologies to recognize and interpret language and provide more accurate search results. Once the search is complete, the user is presented with a list of emails that match the search criteria.