Several identities like first outlook
The versions of Outlook in classic, had a fantastic option: to create different profiles from user in the program, what allows to create groups of accounts (personal, work,…) without mixing post office among them.
Use four accounts of mail, when creating rules to classify it in separated folders, I end up mixing messages of all of them if I do not have much taken care of when generating the rule.
This diminishes when using profiles.
At the moment, I am using different clients from mail with each group of accounts, to regenerate the organized mess.
Another option that I consider, is to create different user in mac, and to divide mail, chat,… according to type.
But this still interrupts the job stream much more.
Reuben Rosenberg commented
It was easiest with Entourage 2008, then it became a little more difficult with Outlook 2011 (because if you accidentally de-selected the "Show this list when opening Outlook" checkbox, you had to jump through a bunch of unintuitive hoops to get it back), and now with Outlook 365 it's downright inconvenient and nearly unusable. Why would Microsoft make this feature so cumbersome to use? Just give users the EASY ability to switch between Profiles (Identities) when we want to! Microsoft's goal should be to make things better and EASIER, not worse and more difficult!
Yes, I see how there's the Outlook Profile Manager, which you must open and select a new default profile, then re-open Outlook. Previously (Outlook 2011) we could have the identity manager pop up everytime Outlook was opened and chose the profile we wanted to work with. Handy feature.