I have multiple software applications (i.e. Log management Software) and devices (Copiers that Scan to email) that have email addresses configured to send alerts, information and scanned documents. I have created the accounts in Active directory and assigned exchange email accounts for the devices/software and configured the devices/software to use the accounts from Active Directory. The email configurations seem to be working because I am getting alerts and scanned documents. However, we continue to get the following error on our Exchange server
Category: Account Logon
Event ID: 680
Logon attempt by: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Logon account: copier1
Source Workstation: EXCHANGESRVR
Error Code: 0xC0000064
The failure audit event is generated every time, but we manage the get the email notifications without any issues. I am assuming that this is an authentication issue with Kerberos or NTLM, but i am not sure if we can do anything to clear up the events. It does not seem to be causing any issues on our Email server, it just generates 100s of log a day.