Hi,
We are transiting organization exchange 2003 sp2 to exchange 2010.
The users open a windows session on the domaineA.rootA.local and they use another account for the email domainB.rootB.local. we are not in the forest resource scenario. the accounts on the forest which contains mailbox are also used to log on others servers and applications.
When moving the mailbox from exchange 2k3 to exchange 2k10, all is ok except for OOF and Busy/Free information on outlook for some computers.
1- Exchange 2k3 users see the Busy/Free information Exchange 2k10 users
2- Exchange 2k10 users see the busy/free Exhange 2k10 users (when i disabled the proxy ie setting then it works).
3- Exchange 2k10 users see the busy/free Exhange 2k3 users (when i disabled the proxy ie setting then it works).
4- OOF doesn't work "server unavailable" and the IIs logs shows that outlook send a request with the wrong account (domaineA.rootA.local) rather than domainB.rootB.local
Exemple:
2013-12-04 10:10:32 10.251.0.246 POST /ews/exchange.asmx - 443 - 10.1.34.138 Microsoft+Office/14.0+(Windows+NT+6.1;+Microsoft+Outlook+14.0.6129;+Pro) 401 0 0 15
2013-12-04 10:10:32 10.251.0.246 POST /ews/exchange.asmx - 443 - 10.1.34.138 Microsoft+Office/14.0+(Windows+NT+6.1;+Microsoft+Outlook+14.0.6129;+Pro) 401 1 2148074254 0
2013-12-04 10:10:32 10.251.0.246 POST /ews/exchange.asmx - 443 domaineA\user1 10.1.34.138 Microsoft+Office/14.0+(Windows+NT+6.1;+Microsoft+Outlook+14.0.6129;+Pro) 500 0 0 15.
The test of autodiscovery works fine, certificat is approuved, the urls are OK, the exclusions in ie proxy is ok.
I follow the http://www.proexchange.be/blogs/exchange2007/archive/2009/07/14/your-out-of-office-settings-cannot-be-displayed-because-the-server-is-currently-unavailable-try-again-later.aspx
I have no problem with webmail. Office standard 2010 32 bits. I tried to disable Windows Authentification for EWS and AUTODISCOVER, it still the same problem.
Then, when i force outlook setting to ask credentials. the user when he starts outlook an authentification windows appears asking credentials, then the oof, busy free information works well. and IIS server logs show that outlook send a request with the correct account domainB.rootB.local.
could you please help me to understand and fix this ?
Thanks