The user account I normally use has something wrong with its native OS "Internet Accounts" configuration. It's corrupted or something. This causes login failures within native OS X apps such as "Messages", "Notes", "Contacts", "Calendar". I've tried deleting all temporary files, such as preferences files. Nothing has worked.
I want to create a fresh, new user account and copy over my preexisting user files for non-native applications so that my software licenses and software configurations are restored faithfully within this fresh account.
What folders/files will I need to copy?
Is there anything else I'll need to do, such as set permissions on those files?