Add a Shared Mailbox To Your Existing Account
If you’ve been granted access to a shared mailbox (for example, [email protected]), here’s how to open it and send messages from it in different versions of Outlook.
Outlook on the Web
(OWA at outlook.office.com)
- In the left folder pane, right-click your mailbox name (the one showing [email protected]).
- Choose Add shared folder or mailbox…
- Type [email protected], select it when it appears, and click Add.
- The shared mailbox will now appear in your folder list beneath your main mailbox.
Alternative:
Click your profile picture → Open another mailbox, type [email protected], and open it in a new tab or window.
To send from the shared address:
Start a new email, click From, and select [email protected].
If you don’t see the From field, click More options (…) → Show From first.
New Outlook App (Windows or Mac)
(the version with the “Try the new Outlook” toggle)
- Go to File > Open > Shared Mailbox.
- Enter [email protected].
- Click Open. The mailbox will appear in your folder list after a moment. If it doesn’t, restart Outlook.
To send from the shared address:
- Compose a new message, click From, and choose [email protected].
• If the From filed isn’t visible, click … More options and select Show From.
Classic Outlook for Windows (Desktop)
- Close and reopen Outlook to see if the mailbox appears automatically.
- If not:
- Go to File → Account Settings → Account Settings…
- Select your account → Change… → More Settings…
- Under Advanced, click Add…, type [email protected], then click OK → Apply → OK → Next → Finish.
- Restart Outlook.
To send from the shared address:
Compose a new message, go to Options → From, and choose [email protected].
Outlook for Mac (Classic)
- Go to Tools → Accounts…
- Select your work account, then open Delegation and Sharing.
- Under Shared With Me, click +, search for [email protected], and add it.
- The mailbox will appear in your sidebar.
To send from the shared address:
When composing a new message, click From, and choose [email protected].
Outlook Mobile (iOS / Android)
- Tap your profile icon (top left) → Settings (gear icon).
- Tap Add shared mailbox.
- Enter [email protected] and add it. It will show up under your accounts list.
To send from the shared address:
Compose a message, tap the account name at the top, and select [email protected].
If You Don’t See the Mailbox
- Sign out and back into Outlook, or quit and relaunch the app.
- In the web version, refresh your browser tab.
- Wait a few minutes after access is granted—it can take a bit to sync.