Regarding Junk Folder
Remove the Notice/note on top of junk folder that says- Items in Junk folder will be deleted after 10 days. It does not fit to all kind of user. Specifically in O365 this general note does not reflect . Please remove the notice.
Resseller partner commented
Outllook desktop client does not have this notifications. Seems Outlook.com is showing the unnecessary information. A notification that is of no use.
Francois Grenier commented
This should not be a feature request, it is clearly a bug.