The add-mailboxfolderpermissions is only giving you specific access to a folder like inbox or calendar. You would than access the folder in Outlook, file menu, open, other users folder. For add-mailboxpermission you're granting the entire mailbox access. Were you looking for more specific info?James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Add-MailboxFolderPermission is a new cmdlet in Exchange 2010. Admin can assign permission on one user's mailbox folder level to another user. Another user can access the folder in Outlook, file menu, open, other users folder as James said. In previous version of Exchange, this can only be done via Outlook manually(Inbox->Properties->Permissions). Add-MailboxPermission is mainly used to assign Full access permission on mailbox level(or EMC->Recipient Configuration->Mailbox->Manage Full Access Permission...) Manage Full Access Permissions http://technet.microsoft.com/en-us/library/bb676551.aspx Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.Frank Wang TechNet Community Support

When would I use one vs the other, etc.? Thanks.

The add-mailboxfolderpermissions is only giving you specific access to a folder like inbox or calendar. You would than access the folder in Outlook, file menu, open, other users folder. For add-mailboxpermission you're granting the entire mailbox access. Were you looking for more specific info?James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Hi adelatorre, Any updates?Frank Wang TechNet Community Support

Add-MailboxFolderPermission is a new cmdlet in Exchange 2010. Admin can assign permission on one user's mailbox folder level to another user. Another user can access the folder in Outlook, file menu, open, other users folder as James said. In previous version of Exchange, this can only be done via Outlook manually(Inbox->Properties->Permissions). Add-MailboxPermission is mainly used to assign Full access permission on mailbox level(or EMC->Recipient Configuration->Mailbox->Manage Full Access Permission...) Manage Full Access Permissions http://technet.microsoft.com/en-us/library/bb676551.aspx Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.Frank Wang TechNet Community Support