Using Outlook 2016, one of our teams shares a secondary shared Exchange mailbox we'll call B.
The mailbox is on the same server as their personal mailbox.
User #1 does not need to sign in to B each time she logs in; it updates automatically.
The rest of the team users (4 other people) need to enter a password for B every time they open Outlook.
Even though they check the box saying Remember Password, it doesn’t.
All of them are using Windows 8.1 and the laptops were all set up the same way.
I have tried deleting the Windows credentials, but that doesn't fix the problem.
They all have the same access to the mailbox on the Exchange server.