Postfix + MySql + Courier IMAP domain quota

[Stingus]

Hi,
I followed Falko's excellent tutorial (http://www.howtoforge.com/virtual-us...tos-6.0-x86_64) and successfully installed and configured Postfix with virtual domains. Maildir quota works but I'd like to set domain quotas, without setting user quotas. Unfortunately, VDA patch is implementing quotas on the user level, not domain. I am coming from a qmail environment where I implemented domain quotas using vpopmail (vusaged) and a maildrop script.

Is there any chance to have quotas for every virtual domain and stop delivery in case of over quota?

Thanks!