Microsoft KB Archive/247126

= POP and IMAP clients do not adhere to storage limitation rules set on mailbox =

Article ID: 247126

Article Last Modified on 10/25/2007

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition
 * Microsoft Exchange Server 2003 Enterprise Edition
 * Microsoft Exchange Server 2003 Standard Edition

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This article was previously published under Q247126



SYMPTOMS
When you set mailbox storage limits in Microsoft Exchange 2000 Server or in Microsoft Exchange Server 2003, Post Office Protocol 3 (POP3) and Internet Message Access Protocol 4 (IMAP4) clients can still send mail. This can occur even though the clients have reached or exceeded their storage limits. The mail sending abilities should be disabled when a mailbox reaches the defined mailbox size limit.



CAUSE
Size limits on mailboxes are implemented in the Exchange Server information store. This problem occurs because POP3 and IMAP4 clients do not use the information store in the process of sending messages.



STATUS
Microsoft has confirmed that this is a problem in Exchange 2000 Server and in Exchange Server 2003.

Additional query words: XFOR

Keywords: kbprb KB247126

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