- Folder names appear in a language other than the default.
Note This issue occurs if a mobile device or a third-party server application synchronizes the Exchange Server mailbox. To resolve this issue, try Method 1 first. If this doesn't work, try Method 2 or 3.
- Folder names are changed unexpectedly (for example, the Inbox folder and the Outbox folder are switched).
Note This issue may occur after Exchange Server mailbox maintenance. To resolve this issue, try Method 1 first. If this doesn't work, try Method 2 or 3.
- Folder names are no longer correct after you run the Outlook.exe /ResetFolderNames command to reset the default folder names.
Note To resolve this issue, try Method 2 or 3.
- Exit Outlook.
- Open the Run dialog box:
- In Windows 10, Windows 8.1, and Windows 8, press Windows Key + R.
- In Windows 7 and Windows Vista, select the Start button > All Programs > Accessories > Run.
- Exit Outlook.
- Log on to Outlook Web App by using your credentials.
- Select Settings (the gear icon on the right) > Options > General (expand the list on the left navigation pane) > Region and time zone.
- On the Regional and time zone settings page, change the language, select the date and time format that you want to use, select the Rename default folders so their names match the specified language option, select Save, and then exit Outlook Web App.
Note If your preferred language is already selected, you may have to select any other language, save it, and then save it again with the preferred language.
- Restart Outlook.
set-MailboxRegionalConfiguration -id <alias> -LocalizeDefaultFolderName:$true -Language <Language_code_to_switch_to> -DateFormat <your_preferred_DateFormat>
Article ID: 2826855 - Last Review: Mar 28, 2017 - Revision: 15