Outlook Mailfolder can't enter path that contains Space

Hi,dear all。
When using Outlook to get mail, if I enter "Inbox\rpatestinteranl"in The MailFolder Folder, it can operate normally, but entering “Inbox\internal email” will prompt “The Specified Folder does not exist”.
I tried to open the XAML file directly and change it by replacing the Spaces with: chr(10) and   Unsuccessful, adding xml:space=“preserve” under the tag can spell timed out.
pls help me~~~

Spaces with: chr(10) and “& #160;”Unsuccessful,

Navigate to Application->Storage->LocalStorage on the right. Set the key to featureOverrides , and its value to outlookSpaces- enabled . Refresh the page.