通过C＃应用程序接收电子邮件和下载附件

I am trying to implement a WPF application which can receive the mails sent to a specific email address. The scenario is that, the user will send a PPT file as an attachment to a specific email address, and my WPF application will listen to this email and once it receives the email, it will download the attached file and saves it to the hard drive. I am trying to implement a WPF application whic