81 votesperugina commented
I tried everything I can not resolve the problem.... I am using apple Mail and I get this msg almost everyminute from Microsoft :One or more folders in your mailbox have name conflicts with others or system reserved names.
Folders with these names can't be downloaded by your IMAP e-mail program.
Please connect to your mailbox using your Web browser and rename those folders. Once renamed, those folders will be displayed in your IMAP e-mail application correctly. It is not JUNK folder ... is th NOTES folder and I can not rename in my web browser