To start, I will say I love and miss Outlook. One thing that chafes is the lack of a unified inbox.
I have used it for many years but have moved on to a small third party email client that supports unified inbox, at the expense of many things Outlook does well. I had it when I was a mac guy, but as a ,net/SQL server developer I live 99% in the windows ecosystem. I watch jealously as the Mac version of outlook gets update after update and becomes a much better product. Why, oh why can't we have the same universal inbox on the MS Flagship program for Office? Is MS telling us that its not good to have multiple email accounts? Are they telling me to get another Mac? Any news on the horizon for this?