Email services nowadays are flooded by spam and phishing attacks. Email service providers build their own email filters to protect the final users from such attacks resulting in an overall better experience. However, the attacks come mainly from the same problem in the email protocols, i.e., the lack of authentication mechanism. In this work, we attempt to minimize some of the most common problems identified in email services such as spam, phishing, spoofing, lack of encryption, repudiation and centralization by implementing a smart contract over the Ethereum protocol. The proposal involves a decentralized system, a smart contract, a file system and two applications used as proof of concept.

如今，电子邮件服务充斥着垃圾邮件和网络钓鱼攻击。电子邮件服务提供商构建自己的电子邮件过滤器，以保护最终用户免受此类攻击，从而带来总体上更好的体验。但是，攻击主要来自电子邮件协议中的同一问题，即缺少身份验证机制。在这项工作中，我们试图通过在以太坊协议上实现智能合约，来最大程度地减少电子邮件服务中发现的一些最常见问题，例如垃圾邮件，网络钓鱼，欺骗，缺乏加密，抵赖和集中化。该提案涉及一个去中心化系统，一个智能合约，一个文件系统和两个应用程序作为概念验证。