Hi there, I've got a question about the above tutorial which worked great BTW. I've updated my system a while ago and now I see that the quota doesn't work anymore. I guess I'll have to rebuild the quota patch and download the sources from postfix again (well that's obvious isn't it)? My question is, can I patch and rebuild the newer postfix sources without breaking anything? I hestitate a little bit to do that, in fear of breaking my system. My server is live and it would be a desaster for me if the mail server breaks. Is there anyone out there who did this already and can tell me if this works flawlessly?