I have setup report subscriptions delivered via email, on Sharepoint and they tend to fail sending email randomly. It works most of the time, once or twice a week few subscriptions fail. Here is the detailed error message:
library!WindowsService_28!a74!05/18/2011-06:45:12:: w WARN: Microsoft.ReportingServices.Diagnostics.Utilities.ServerConfigurationErrorException: The report server has encountered
a configuration error. Logon failed for the unattended execution account. ---> Microsoft.ReportingServices.Diagnostics.Utilities.LogonFailedException: Log on failed. Ensure the user name and password are correct. ---> System.ComponentModel.Win32Exception:
The security database on the server does not have a computer account for this workstation trust relationship
library!WindowsService_28!550!05/18/2011-06:45:12:: i INFO: Schedule 7d92afd5-f5ac-4d65-adc8-d87a3aa4bef4 executed at 05/18/2011 06:45:12.
schedule!WindowsService_28!550!05/18/2011-06:45:12:: Creating Time based subscription notification for subscription: 7f035fad-44a1-4cd6-9d41-5465540c879d