Yeah, there's still lingering tradition going back to days when people could/would run a Citadel off floppy disks...
Personally I'd like to see an option for a "Never delete anything ever" policy. Anything deleted, say in a user's personal email box, is merely MARKED deleted in the backend. Administrators can still get at it. And maybe the user can pull it out of a "Recycle Bin" or something.
Corporate nazi's would love it. Many companies seem to have policies where they keep all emails for a period of x months or years or whatever.
My own email server is still running Courier IMAP. It has an option to put anything deleted into a Trash folder which can also be auto purged. I have it set to purge anything older than a month from the trash. Doesn't mesh that great with the IMAP protocol, but it works nice when you have your IMAP client set to not hide deleted messages in the "virtual trash" IMAP clients seem to have.
