Outlook - Setting a shared mailbox to not be cached

Are your shared mailbox emails not synchronising?
This procedure will guide you through setting up your email to be directly synchronised from the server every time.

Click File

Click Account Settings > Account Settings

Click your mailbox and click Change

Click More Settings

Uncheck the checkbox next to Download Shared Folders

Press Ok and click Next, then click Done

Afterwards, restart your Outlook. All your emails should start synchronising again.