How to extract sent items from Outlook shared mailbox in Excel VBA?

I'm trying to extract emails from a group/shared mailbox in Outlook using the code below in Excel.

olObjNs.GetSharedDefaultFolder(olShareName, olFolderInbox)

Using this I can extract inbox items.

https://msdn.microsoft.com/en-us/vba/outlook-vba/articles/namespace-getshareddefaultfolder-method-outlook says "..... olFolderSentMail cannot be specified for this argument."

How do I get 'Sent items' from a shared mailbox?

I tried olObjNs.GetDefaultFolder(olFolderSentMail) but it retrieves my personal email 'Sent Items'.