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OWA access denied

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We recently installed Exchange 2000 on a new server. We still have Exchange 5.5 running on the old email server and I am gradually moving mailboxes over to the new server. All mailboxes are functioning properly on the LAN and via POP3 but OWA is not working for everyone. Specifically, only Domain Admins can access their mailboxes via OWA so it must have to do with permissions on something but what I can't figure out.

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by darts32

check the following:

You must grant "Access this computer from the network" and "Log on locally" permissions to the users who need access to OWA. Typically this will be Domain Users.

The account used by the Internet Information Service (IIS) must have "Log on locally" and "Access this computer from the network" rights specified. IIS must be configured to allow Anonymous logon, and Basic (Clear Text) should be set as the authentication method. A good tip is to change the password for this account within IIS and User Manager for Domains.

Verify that the permissions on the Exchsrvr/Webdata directory and all of its sub-directories are set to READ and that the permissions on the Exchsrvr/Webtemp directory and all of its sub-directoriesare set to CHANGE.

For more check this: http://tinyurl.com/6avz

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