Event ID - 2025

Event Id2025
SourceMSExchangeIS Public
DescriptionThe delivery of a message failed due to error FFFFF9BF. A non-delivery report is being sent to the messages originator.
Event InformationAccording to Microsoft:
CAUSE:
The service account does not have Add Child permissions set at the site level for the site where the public folder server resides. If the service account does not have Service Account Administrator permissions set, and does not have Add Child permissions set for the site level, the problem described in the "Symptoms" section occurs.
RESOLUTION:
Make sure that the service account has Service Account Administrator permissions set for the organization, site, and configuration levels. If the service account has Custom Role permissions set, it must have Add Child permissions set for the site level. After you set the correct permissions, run the DS/IS consistency adjuster to synchronize public folders with the directory.
Reference LinksXADM: Public Folder Object Is Not Found in the Directory

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