We're looking for a file copy utility for file level backups. We need it to be able to alert when it fails to synchronize/copy within a certain period of time through E-mail. This will save from a large amount of manual checks that have to happen today. We don't want a message on a success, but to know on a failure.
These files are copying from many different sources to a single NAS destination with software controlled likely by a server. We are looking for something that is free (of course ideally) or has a static one time cost to it.