Hey man your problem is more than exchange. You AD problem, and to be honest with you, the AD design you have is one of the worst I've ever seen. It's not about GCs or DCs, but it's more of knowledge of how all of these components work together. I mean I can not justify having a total of 73 domains for one company, and then you said that you have no NT4, and still running in mix mode, which is no big deal. I highly recommend that a consultant be put on this job to get all redone, and consolidate all of these domains to fewer domains, and then redesign AD. I am so sorry but I can't do all of this work for free, because this is what I do for living and not my hobby. Thanks and best of luck -----Original Message----- From: robin [mailto:robin_adam9@xxxxxxxxxxx] Sent: Thursday, December 01, 2005 12:29 AM To: [ExchangeList] Subject: [exchangelist] RE: unable to create mailbox for a user in exhange server 2003 http://www.MSExchange.org/ 1. We have Windows 2003 server OS in all Domains and child domains. 2. One parent domain and remaining 70 child domains created under parent domain 3. One Domain controller (PDC), One Additional Domain controller (Enterprise edition Exchange server 2003 installed in it) and these two are Global Catalog servers (total two GCs). 4. PDCs and ADC are running at domain functional level windows 2000 native mode. 5. Child domains domain functional level windows 2000 mixed mode. 6. We don't have NT4 domain in the forest. all parent and child domains controllers are having windows 2003, running exchange 2003 .except this child domain controller, remaing all working fine. thanx ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: aalmassud@xxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx