Microsoft KB Archive/174762

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XADM: Servers Without Public Store Require Anonymous Mailbox

Article ID: 174762

Article Last Modified on 10/28/2006


  • Microsoft Exchange Server 5.5 Standard Edition

This article was previously published under Q174762


In order to allow anonymous IMAP4 clients access to a Microsoft Exchange Server computer that has no Public Information Store, a mailbox must be created in the Private Information Store to act as the anonymous account. This account is then specified on the Anonymous tab of the IMAP4 protocol's Properties dialog box.


When allowing anonymous access via the IMAP4 protocol on an Exchange Server computer, an account called Anonymous is specified by default. If the server does not contain a Public Information Store, a mailbox in the Private Information Store must be created for anonymous user(s) to use to log on.

Additional query words: POP3

Keywords: kbusage KB174762