I have a Macbook 15" Retina with Yosemite. Mail in Junk Folder reappears after I have deleted it.
MacBook Pro with Retina display, Mac OS X (10.2.x)
Posted on Mar 21, 2015 1:03 PM
Q: junk mail reappears after deletion
You may need to check how you have your server(s) set up to handle your mail.
Go to Mail, go to Preferences, go to Accounts, go to Mailbox behaviors and see the options you may have set.