File storage
In this section, you can change settings for File storage used by the local quarantine.
Compress quarantined files
Compressed quarantined files take up less disk space, but if you decide not to compress files, you can click the toggle to disable compression.
Clear old files after (days)
After messages are held for a specified number of days, they are removed from the quarantine window. However, the files will not be deleted from the disk. Because files are not deleted from the file system, you can recover them using eShell.
Clear deleted files after (days)
This setting deletes files from the disk after specified number of days, and you cannot recover them after they have been deleted (unless you have a file system backup solution).