Can you explain something to me. My understanding of mailbox security/permissions was that you originally assign a mailbox to a domain account. By default that domain account is the only person who can access the mailbox, inbox, sent items, deleted etc (this is in exchange 2003). They (the domain user) can give our delegate rights to other users, or an exchange admin can give “send as” rights to other domain users.
However, I have just looked at all domain groups in ADUC, and many of them have “mailbox” in the title. I.e. “WXC mailbox access”, and then when I check the membership about 40 members. So where (I am very knew to mailbox ACL’s) does the AD group get added? And how if these users are part of the group would they be accessing the mailbox? Via their own domain accounts?
Completely baffled how this works or why someone would set up an AD group to grant a team of users access to a mailbox.