User(Owner) cant able to update the DL's in using outllok 2003 , there is only one domain and we are on Exchange 2007 . However there are numbers of users facing the same issue.Permission has been verified all set. However what we found that one of the user once disconneted from network and after rebooting his desktop he was able to update the DL. so i am trying to find out what could be the root cause of this issue. We have migrated from 2003 to 2007 its been 2 months now. Desperatly lloking for an answer and help on this issue. Thanks

On a desktop with this problem, check if the user is authenticated to Exchange GC. You can check this by looking into the connection status of outlook (Right click on outlook task bar icon and select connection status)

Hi, The Global Address List contains global distribution lists ,public folder e-mail addresses and e-mail addresses of everyone in Exchange organization. When using Microsoft Office Outlook 2003 with Cached Exchange Mode, the Offline Address Book is downloaded by default and updated once every 24 hours. “Disconneted from network and after rebooting his desktop” force outlook 2003 updating Global Address. It seems there is no issue updating Global Address List. You could update Global Address List manually as following methods. Method 1. Right click on outlook task bar icon and select connection status, click reconnect. Method 2. Press “send and receive” to update Global Address List. If you make frequent changes to the offline address book, you may want to modify the way that Outlook computers on your network access the Address Book. You can disable the downloading of the offline address book and force the Outlook computers to use the online Global Address List when they use Cached Exchange Mode. More information about Administering the offline address book in Outlook 2003 and Outlook 2007 http://support.microsoft.com/kb/841273Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi Frank thanks for you help the issue was faces by no. of users so finally found the solution for this the Distribution List issue we are seeing. The issue is that one DC has not been added to the StaticExcludedDomainControllers list on the Exchange servers. DC’s need to be added to this list so they are not used by Exchange DS Proxy which will affect our Outlook clients. we have to update the StaticExcludedDomainControllers list.