I have some email addresses that have no users associated with them but they are "computer accounts" that need a username and password associated with them to send email from programs/scripts.  Kind of like no-reply accounts.  The problem is sometimes people respond to the no-reply accounts.  The email goes into the in-box until it fills up.  When I select AutoClean, I don't see the "in-box" as an option.  

 

How can I autoclean the Inbox?