The user can't be accessed because they have an Exchange 2007 mailbox. A mailbox policy can't be set for users who have Exchange 2007 mailboxes. They can only be set for users who have Exchange 2010 mailboxes. If this user is migrated to an Exchange 2010 mailbox, a mailbox policy can be set. Note: If you migrate a user from an Exchange 2007 mailbox to an Exchange 2010 mailbox, any settings that you previously set on a per-user basis using segmentation won't be migrated.
The user '{3}' had a long-running MAPI operation of type '{4}'. The longest-running MAPI operation issued by this user took ...
The user '{3}' is causing high RPC load by MAPI operation "{4}". When a single MAPI operation type is responsible for a large ...
The user account "{0}" to be linked has already been the master account of another linked mailbox "{1}". Choose a different ...
The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending ...
The user can't be accessed because they have an Exchange 2007 mailbox. A mailbox policy can't be set for users who have Exchange ...
The user configuration name is invalid. The name must be fewer than 237 characters, can contain only the characters "A-Z", ...
The user directory attributes, such as homeMDB or msExchHomeServerName, may be missing or corrupted. Troubleshooting: Verify ...
The user federated domain '{0}' is defined in multiple remote organization relationships, including '{1}', which can lead ...
The user hasn't logged on to mailbox '{0}' ('{1}'), so there is no data to return. After the user logs on, this warning will ...