Open/Send as a Shared Mailbox (Outlook Desktop & Web Application)

Send as a Shared Mailbox (Outlook Desktop & Web Application)

Outlook Desktop (Windows)

1. Open the From field: New Email → Options → From (enable it).
2. Choose the shared mailbox: Click From → pick the shared mailbox (or Other Email Address… and type it).
3. (Important) View the mailbox folders: In the left pane, fully expand the shared mailbox and click Inbox for mail to start populating.

Outlook on the Web (OWA)

1. Click your profile picture (top‑right) → Open another mailbox.
2. Search/select the shared mailbox → Open.
3. Compose a new email. If needed, click From and select the shared mailbox.   

If the From line is missing (Desktop)

• New Email → Options → From (toggle it on).