1. Open the Outlook App on Your Mac.
2. Access Outlook Settings.
a. In the top menu bar, click Outlook > Settings.
3. Navigate to Accounts.
a. In the Settings window that opens, click on Accounts (it may appear as an icon or tab).
4. Select Your Account and Open Delegation and Sharing.
a. In the Accounts, select your primary Microsoft 365 account (the one with access to the shared mailbox).
5. Then, click the Delegation and Sharing section
6. Switch to the Shared With Me Tab and Add a Mailbox.
a. In the Delegation and Sharing window, click the Shared With Me tab. Then, click the + (plus) icon, at the bottom left or top left of the tab.
b. The shared mailbox(s) should auto resolve if you are on company network or have Cloudflare WARP VPN running.
7. Search for and Add the Shared Mailbox.
a. A search window will appear. Type the name or full email address of the shared mailbox (e.g., "team@planetcsc.com"). Select it from the results, then click Add.
8. NOTE: If the directory services (Active Directory) global address book is not auto resolving or no results are showing you may need to add an additional setting “Directory”
9. Add Directory Server(s)
a. Click the + (plus) icon, and add the following information.
10. LDAP server : Port
a. pfcscdc01.pfhq.local
11. Search base
a. OU=PFHQ Users,DC=PFHQ,DC=local
Save the Windows and verify in Outlook Mail Account
12. The shared mailbox should now appear in the left sidebar (Folder pane) under your main account or in a "Shared" section. If it doesn't appear immediately, quit and reopen Outlook, or click the Sync icon in the top ribbon.