Event ID - 4004

Event Id4004
DescriptionCategorization failed. The error message is The system cannot find the file specified.. Data: 0000: 02 00 00 00
Event InformationAccording to Microsoft:
This problem occurs if both of the following conditions exist:
1. The recipient is in an organizational unit that has a non-ASCII character in its distinguished name (DN). For example, the organizational unit name contains an umlaut character.
2. The distribution group contains many members. For example, the distribution group contains more than 1,000 members.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem. Only apply it to systems that are experiencing this specific problem.
Reference LinksXCON: Incorrect NDR Is Returned When You Send a Message to a Mailbox Where a Delivery Restriction Is Based on Distribution Group Membership

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