874 votesThom McKiernan commented
I have a similar need for my mailboxes.
I have my personal mailbox and access to 4 other Shared Mailboxes
I usually have a couple of these open in separate windows.
It would be really useful if it was more obvious which window related to a particular mailbox.
Adding colours to the mailboxes would really help to differentiate them
78 votesThom McKiernan commented
This has been around for a while, at least since 2010, maybe 2007.
You just change to the detailed view and "In Folder" is a column. You can also change the standard view to "Group by Folder"