Event ID - 1021

Event Id1021
SourceMsExchangeIS
DescriptionDOMAIN/USERNAME was unable to connect as /o=Organization/ou=OrgUnit/cn=Exchange/cn=User Alias. Error <error code>
Event InformationError codes: - 0x3f2 - An error reading the hard disk. This issue can occur when you do not have the correct NTFS file system permissions on the Exchsrvr folder on the Exchange Server computer. See Q249892. - 0x80040111 - MAPI_E_LOGON_FAILED = An unsuccessful logon attempt when you query the directory. Q278966 might help? Links Q249892,

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