It would be very useful to know who changed a database quota, when it was changed & the before & after values. Otherwise, lazy administrators ignore the quota that should be enforced & increase quotas endlessly to placate complaining users.
we have enforced strict mail quota rules for everybody (with the possibility to archive old mails and a 'archive attachments). Unfortunatelly some users don't get the mail quota warning message, so every few days we have to use our cluebat and tell them what to do after such messages and ...
Rather than having to compact mail files to get them under quota, it would be great if the calculation that determines quota could ignore any whitespace in the mail file.