Hi Dev team!
If it's possible, I realy welcome, this feature.
The reseller can set up a separate e-mail storage quotas for customers.
For example set 1 Gb storage for files and databases, and other 2 gb e-mail quota.
I prepared this to the previous version, I have attached a picture how I imagined.
(There are hungarian text on image, but I hope it's understandable)