Email notification of files prior to expiry/extinction from the backup set.
Many businesses (ourselves included) typically never delete files unless they were created in error.
One of the "flaws" in Mozy is that because it simply "mirrors" the files on a server, you never really know if someone has inadvertently deleted a file until someone else discovers it missing.
With that in mind, it would be desirable to have a feature whereby either deleted files are reported (eg. file "blah" was deleted from the backup set), which might be considered the first line of defense, and secondly, since the file remains on Mozy's servers for an additional 30 days, it would desirable to be advised when a file you hold a backup copy of that is no longer on the server is due to expired and be removed from the backup.