Hi I have a running exchange 2003/2007 enviroment. Somehow (I guess I have removed some permissions that I should not have done) I lost my ALL Address List container - and therefor outlook fails when downloading the OAB How can I recreate it - when doing it manually in ADSI Edit it still does not work. Can I run /forestprep again to create the container without doing harm to the the already running exchange enviroment. Regards. Lsvo

Hi LSVO, You can try by running Exchange 2007setup with /PrepareAD switch, which verifies certain things listed in below article and fix if something is missing. If Address List Container doesnt exist then this creates it and objects under that. How to Prepare Active Directory and Domains

It solved the case. Thanks Amit

Glad to hear that it is resolved