set-MailboxRegionalConfiguration doesn't have a parameter for VerifyDefaultFolderNameLanguage, get-MailboxRegionalConfiguration does. How is that value changed or set?
The problem is that when a mailbox is first initialized is uses that setting for the language of the folder names in Outlook. Even when you change that setting it doesn't change the folders names after the account has been initialized. The Outlook.exe /resetfolders won't change it either.
I want to change the default folder names to another language when an account is activated for Unified Messaging.