I would like to add a feature request regarding the "Quota reached" messages. As it is now, the message is sent to the admin user for the end-customer, and this works well. However, a couple of our resellers have asked for the possibility to also receive these messages directly. This is a good opportunity for them to be proactive and follow up before the customer runs out of disk space, and it is a good opportunity to sell them more space.
The admin user(s) on the reseller account could get a copy of these emails. Perhaps with the option to turn on/off this feature.