This is a question that was asked on apple support community but did not find any answer. I am having exactly the same problem, I hope someone here can help.
In Mail -> Preferences -> Junk Mail, I have deselected "Enable junk mail filtering" ... yet the "Junk" mailbox still appears in the left column, and various emails are still being directed to "Junk." (from apple support forum)
I don't care whether or not the "Junk" mailbox is visible; I just don't want Mail to direct any emails into the "Junk" folder. And, as I noted in my original inquiry, I already DID deselect "Enable Junk mail filtering."
So, to reiterate my original question: "How do I make emails stop getting directed into the Junk mailbox?" This was never a problem prior to Mavericks.
As in the question of the op on apple support, this seems to start happening since the Maverick update and occurs only with my gmail/IMAP account.
Any idea on how to effectively disable the Junk box of Mail and not have these emails deleted from the gmail server?