.NET Mail Expert components - Version 5.1.4028 The Ultimate Mail Expert offers a comprehensive interface for sending, receiving e-mail messages from a server and managing your mailbox remotely, all from within your application. In addition, it also allows you to inspect and categorize bounced email messages with Ultimate Bounce Inspector component. Furthermore, you can use the Ultimate Email Validator component to efficiently filter bad and good email addresses for your email campaign. All components in the package are 100%-managed .NET class libraries, and they include complete sample projects, as well as full technical documentation which help you to become familiar with the features of the components.