How to Change the Language of a Shared Mailbox in Outlook
Question details
The user needs to change the display language and update default folder names for a shared mailbox in Outlook on the web.

- Product
- Microsoft Outlook
- Device & OS
- not provided
- Scenario
- Configuring language preferences and default folder names for an Outlook shared mailbox.
- Observed behavior
- The user wants to switch the mailbox language and needs the default folders to match the new language, but the option to rename folders is initially hidden.
Ensure you have the necessary access permissions to open and manage settings for the shared mailbox in Outlook on the web.
Change the Language and Rename Default Folders in Outlook on the Web
Use the Outlook web interface to access the shared mailbox directly and update its regional and language settings.
To properly change the language of a shared mailbox, you must open it directly in its own browser tab through Outlook on the web. Applying language changes from your primary mailbox settings will not affect the shared mailbox.
Go to www.office.com, log in with your credentials, and select the Outlook application.
Click your profile picture in the upper-right corner and select 'Open another mailbox'. Enter the shared mailbox name and click 'Open'.
In the new tab displaying the shared mailbox, click the 'Settings' (gear icon) in the upper-right corner. Then, choose 'General' and click on 'Language and time'.
Click the language drop-down menu and select your desired display language.
After selecting the new language, check the box that says 'Rename default folders so their names match the specified language', and click 'Save'.
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Frequently Asked Questions
Why can't I see the 'Rename default folders' checkbox?
This checkbox remains hidden by default. It will only appear on your screen after you have actively chosen a new language from the drop-down menu in the Settings pane.
Does changing the shared mailbox language affect other users?
Yes, if you choose to rename the default folders (like Inbox, Sent Items), those folder names will change to the new language for everyone who accesses the shared mailbox.
Can I change the shared mailbox language from the Outlook desktop app?
No, managing the default folder languages and regional settings for shared mailboxes is most reliably done through Outlook on the web by using the 'Open another mailbox' feature.




