Cause:
SMTP service is installed but not configured.

Fix:
To stop these events from occuring, add the TraceFileName and the TraceLevel values to the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SNMP_EVENTS\EventLog\Parameters

• TraceFileName
Type: REG_SZ
Value: null (blank)
• TraceLevel
Type: REG_DWORD
Value: 32 (0x20)

or merge the following

------------------------------------
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SNMP_EVENTS\EventLog\Parameters]
"TraceFileName"=""
"TraceLevel"=dword:00000020
-------------------------------------

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