Sending and Receiving Secure Email Based on Blockchain

Email system security helps protect organizations against cyber threats that use email account attack vectors such as phishing and spam to gain unauthorized access to a company's internal network. Additionally, cybercriminals can easily impersonate a sender or manipulate the content of an email, whether in the body text, as attachments, URLs, or by using the email address. email from a sender. Our goal in this article is to propose an E-mail management system based on blockchain technology, we are referring to a new technology that aims to prioritize security and privacy, something that traditional email servers lack. Current email transfer protocols such as IMAP/POP3/SMTP are being replaced by Blockchain technology, where messages, files and attachments are stored in shared blockchain ledgers distributed across the entire network. In this article, we will propose a blockchain-based messaging system architecture using smart contracts. By leveraging the transparency, security and immutability of blockchain.