How to check if a mail sent is in the recepient's inbox or Junk

Hi all,

I am writing a code to send mail using C#. But sometimes it so happens that the mail sent reaches the receiver's Junk Folders and sometimes to Inbox. The email addresses in the To,Cc,Bcc are correct. Can anyone please suggest me on how to do the junk mail detection?

Thanks in Advance.
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