On the Mailbox tab you can edit properties related to the mailbox assigned to a user, this includes:
• Changing mailbox type (user, room, equipment or shared)
• Setting mailbox alias
• Hide the mail address from the address lists
• See the mailbox usage
• Edit storage limits
• Enable forwarding (delivery options)
• Set delivery restrictions (approved or rejected senders and message size limits)
• Assign access permissions to the mailbox (Mailbox delegation)