Process w3wp.exe (EWS) (PID=13520). Recipient object CN=SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c},CN=Users,DC=domain,DC=localread from dc.domain.local failed validation and will be excluded from the result set. Set event logging level for Validation category to Expert to get additional events about each failure.
Log Name: Application
Source: MSExchange ADAccess
Date: 10/02/2017 09:03:01
Event ID: 2160
Task Category: Validation
Level: Warning
Keywords: Classic
User: N/A
Computer: server.domain.local
Description:
Process w3wp.exe (EWS) (PID=13520). Recipient object CN=SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c},CN=Users,DC=domain,DC=net read from dc.domain.local failed validation and will be excluded from the result set. Set event logging level for Validation category to Expert to get additional events about each failure.
Event Xml:



2160
3
6
0x80000000000000

2378010
Application
sever.domain.local



w3wp.exe (EWS)
13520
CN=SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c},CN=Users,DC=domain,DC=local
dc.domain.local

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