It’s not an all or nothing approach.Īs a potential downside though, when you configure mailbox folder permissions, auto-mapping is not used at all. You can grant full access, or editor access, or reviewer access (which is like Read Only access). When you use mailbox folder permissions, there’s a lot more control for the level of access granted. But administrators can do it as well, and are usually asked to handle it for the users anyway, especially for shared mailboxes. Mailbox Folder Permissions can actually be configured by the mailbox owner themselves using Outlook. So if you grant a user permissions to the Inbox, they won’t get access to the Calendar as well. Mailbox Folder Permissions grant access to specific mailbox folders only. Removing an Auto-Mapped Mailbox from Outlook.Unexpected Permissions Appearing on Exchange Server Mailboxes.Exchange Best Practices: Administrator Access to User Mailboxes.How to List All Users Who Have Access to Other Exchange Mailboxes.

How to Grant Full Mailbox Access for a User.If you grant mailbox permissions to a security group that the user is a member of, they’ll get access to the mailbox but auto-mapping won’t work at all. However, Auto-mapping only works if you grant mailbox permissions to a user directly. When you grant a user mailbox permission to another mailbox you can optionally disable auto-mapping, in which case the user needs to manually open or add the mailbox to their Outlook profile. This happens through Autodiscover, and Auto-mapping is enabled by default. Auto-mapping will automatically connect Outlook users to mailboxes that they have been granted mailbox permissions to. When you assign mailbox permissions, you have the option to enable or disable auto-mapping. The access granted through mailbox permissions is “Full Access”, meaning that the user can read, write, edit, create, delete, and so on. Every folder within the mailbox, whether it be the Inbox, Calendar, or Contacts, allows the same level of access, when mailbox permissions are used. Mailbox permissions are used to grant access to an entire mailbox. The two approaches are suitable for different scenarios. When you are granting access for one user to access another mailbox, whether that be another user’s mailbox or a shared mailbox, you can configure the access using either mailbox permissions or mailbox folder permissions.

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