When attempting to run a Tracking Log gaythering against a CAS server the following error may appear:
"The Server Mail Traffic processor is missing the Exchange Site Server List pre-requisite information."
Some of the AD objects have not been collected
Run a Regather against the Exchange Organization:
1. Launch MessageStats Console
2. Expand the Exchange Organization node
3. Select the name of the Exchange Organization | Right-click | Regather Structure
4. After its completion run the Tracking Log gathering again
