Enhanced performance, designed for simplicity – the new Outlook for Mac

Thank you, gerhard5  for the tip. I reported three other "missing features" of the new Outlook. They created user voice tickets for them where people can vote to have these features added back. First, there's no quick way to get to the address book. In the old client there was a button in the toolbar. Now, there's no button and no easy way to search your directory. We have over 5000 employees plus group lists. Second, when you go to search it always defaults to "Current Mailbox" vs "Current Folder". It would be nice if it would remember that option. It will not. Third, your search results will only show in conversation mode rather than individual messages. Thus, you have to dive into the conversation to see the message you're really looking for. 

https://outlook.uservoice.com/forums/924856-the-new-outlook-for-mac/suggestions/38989360-where-is-the-address-book

https://outlook.uservoice.com/forums/924856-the-new-outlook-for-mac/suggestions/40159519-stop-changing-the-search-default-to-current-mailb

https://outlook.uservoice.com/forums/924856-the-new-outlook-for-mac/suggestions/40157299-don-t-use-show-as-conversation-when-searching-fo

They rolled this new outlook out with much limited control features compared to prior versions.