I am seing the following error every 4 to 5 min appearing in the exchange 2007 application logs:
Event ID 1035
Inbound authentication failed with error LogonDenied for Receive connector Default 'Servername'. The authentication mechanism is Gssapi. The source IP address of the client who tried to authenticate to Microsoft Exchange is [126.96.36.199
This is not an internal address... has anyone seen this before?
Should I be conserned about it?
Does anyone know the fix?