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Mailbox security in Exchg 5.5

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6 replies

by johnnyextreme 1 view

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I've set the permissions for my mailbox to None for everybody in the Global Address List except myself, yet everyone is still able to access my inbox, calendar, etc. I've noticed on some of the public folders there is an "Anonymous" listed in the permissions, and the permissions for Anonymous apply to everyone not specifically listed, but I can't find this Anonymous when I try to set permissions! Can anyone help me set permissions on my mailbox?

6 replies

by johnnyextreme

FYI: Under Services | Exchange Server, Logon Network security is set to NT Password Authentication, and when a user accesses a mailbox other than his/her own it generates an application event in Event Viewer "NT User Domain\SoAndSo has logged onto ThisAndThat mailbox, and is not the primary Windows NT account on this mailbox."

by aavakian

Check the permissions on each folder. Also check the delegates tab under tools and options. Can these users see everyones mailboxes or just yours? If everyones then check the permissions on the exchange server.

by shanghai sam

I've tried having nobody listed in the permissions (except default, which I can't get rid of, but have set to None) and listing everybody with None permissions except myself, and still anyone can open my folders by going to File | Open | Other usersfolder... All users can (if they knew how) open any other users folders, which is why we usually deliver to personal folders instead of Exchange mailboxes. How can I check permissions on individual mailboxes on the Exchange server? Normal users have User permissions on the Recipients folder. The users NT account is associated with their mailbox, which is why the Application log message appears.

by aavakian

Normal users do not need to have any permissions on the exchange server. Take their names out of the permissions on the recipient folder and any other folder on the exchange server. If their nt account is the primary account for their mailbox then they can get into it.

by shanghai sam

Well how about that! What is the purpose of assigning NT permissions to these folders? Any additional comments can be mailed to j.heinzel@delco.net

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