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Event ID: 1022 Source: POP3SVC

Source
Level
Description
DS lookup for user <user logon name>, connecting from <ip>, failed with error <error code>.
Comments
 
Error code: 0x80040920 - This behavior occurs because the value in the User Logon Name (Pre-Windows 2000) box does not match the value in the Mailbox Alias box. See ME296387 and MSEX2K3DB to find out how to fix this problem.

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