User A is logged is as themselves. Want to use shared Mailbox PA-B as they're main mailbox (the user is PA to the chief exec and this a special pa chief exec mailbox). User also has access to other mailboxes (inc the chief execs actual mailbox call it CA-C).
Mostly User A wants to SEND AS the user PA-B, but sometimes they want to SEND AS the chief exec CA-C. Same with calendar requests.
As per my other questions, seem the best idea it to let the user have a profile with PA-B as the mailbox and then add the others in. Question is though add them as additional mailboxes or let automapping find them? Int he past this has caused us problems with duplicates.
I assume autodiscover looks at the logged in user (i.e user A in this case) and adds mailboxes that this user has access to? Is this how it works?