We use RoboCopy with an add-on utility called RoboCopyPlus (www.robocopyplus.com). It wraps around RoboCopy and not only analyzes the result, based on exit code, but also compresses the logfiles to...
On top of using RoboCopy, use RoboCopyPlus, which will let you email job results with condensed logfile, and inserts entries in the windows eventlog with job result error levels.