Microsoft KB Archive/173776

= XADM: Custom Recipients Cannot Be Accessed via IMAP or POP3 Client =

Article ID: 173776

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.0 Service Pack 1
 * Microsoft Exchange Server 5.0 Service Pack 2
 * Microsoft Exchange Server 5.5 Standard Edition
 * Microsoft Exchange Server 5.5 Service Pack 1
 * Microsoft Exchange Server 5.5 Service Pack 2

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This article was previously published under Q173776



SYMPTOMS
The following events may be logged in the Microsoft Windows NT Application Event Log during an attempt to log on to a custom recipient from an IMAP client:   Event ID: 1023

Source: MSExchangeIS Private

Type: Failure Audit

Category: Logons

Description: DOMAIN\username was validated as

/o=OrgName/ou=SiteName/cn=Recipients/cn=mailboxname but was unable to

log on to /o=OrgName/ou=SiteName/cn=Recipients/cn=mailboxname.

Event ID: 13003

Source: MSExchange IMAP4

Type: Error

Category: Authentication

Description: Logon attempt from 1.1.1.1 to username/mailboxname has failed:

EcDoPrivateLogon call failed with error Logon failure.

Event ID: 11202

Source: MSExchange IMAP4

Type: Success Audit

Category: Authentication

Description: An IMAP4 client 1.1.1.1 successfully logged on to the mailbox username/mailboxname.

This last event is only logged if Diagnostics Logging for the Authentication category is set to at least minimum.

The following event may be logged in the Application Event Log during an attempt to log on to a custom recipient from a POP3 client:   Event ID: 13003

Source: MSExchange POP3

Type: Error

Category: Authentication

Logon attempt from 1.1.1.1 to username/mailboxname has failed:

EcGetMailboxDN call failed with error. The requested mailbox is not

available on this server.



CAUSE
A custom recipient object on a Microsoft Exchange Server computer does not have a physical mailbox associated with it. Therefore, it is not possible for a POP3 or IMAP client to access a custom recipient object on a Microsoft Exchange Server computer. This behavior is by design.



MORE INFORMATION
None of the protocols listed on the Protocols tab of a custom recipient object can be used to access a custom recipient.

Keywords: kbusage KB173776

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