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Logging into other accounts through Outlook Web Access

How can I see if someone is logging into another user's email account through Outlook Web Access. For example, if someone logs onto a user's email account as an administrator. Is it logged as a connection to the server as an administrator or user account? I am using Exchange 2003.

How can I see if someone is logging into another user's email account through Outlook Web Access. For example, if someone logs onto a user's email account as an administrator. Is it logged as a connection to the server as an administrator or user account? I am using Exchange 2003.

To access someone else's account using OWA, you would need to enter the complete URL to that other user's mailbox. For instance, {http://server.domain.com/exchange/administrator}, or using the NetBIOS name: {http://server/exchange/administrator}.

This should be logged in the HTTP virtual server's logs, along with the IP address where the request came from.

Additionally, Exchange Server 2000 and 2003 log Event ID 1016 in the Application Event Log when someone logs on to a mailbox and the account is not the primary account associated with that mailbox. However, as KBA 867640 suggests, this is only logged when Diagnostics Logging for logons on the Information Store is set to minimum or higher.

By default, Exchange Server 2003 does not allow users to access other users' mailboxes. I would recommend taking a look at mailbox permissions as well, and determine which accounts or groups have permissions to access other mailboxes -- these permissions may either be assigned at the user level, or at the Exchange Store.

The minimum permissions required for Mailbox and Public Folder Stores are listed here.

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