Hello Raj, > Mike, You need to create multiple address list views, and assign > permissions to them so that only intended people can view each address > list. You should also restrict the permissions on the default address > book views so that all users cannot view them. Thanks! In the ESM under Recipients I see three address lists: All Address Lists All Global Address Lists Offline Address Lists The first one contains "All Contacts", "All Groups", "All Users", "Public Folders". The second one contains a separate address list for each of my hosted domains. No "Default Address List". Is it the first one I need to mess with, i.e. the "All Address Lists" ? And do I simply need to remove permissions for "Authenticated Users? How about also for "ANONYMOUS USERS" and "Everyone"? Are there any negative ramifications to removing permissions for these? Or is there a different or better way? Thanks again for your assistance. best regards Mike > -----Original Message----- > From: A. Michael Salim [mailto:msalim@xxxxxxxxxxxx] > Sent: Wednesday, January 28, 2004 6:18 PM > To: [ExchangeList] > Subject: [exchangelist] isolating users in an ISP environment > > > http://www.MSExchange.org/ > > Greetings: > > I have an Exchange 2003 server on a Win2003 server. It is in an "ASP" > environment with many different internet domain names, each one being a > totally separate company. It is important that one company does not see > anything or is aware of anything about another company. I have followed > all the ASP guidelines afaik. > > Most everything seems to be working, but when, as an Outlook 2003 > client, if I do the following, I can see all the other groups, users and > contacts. Any ideas on what I might have missed in isolating each > company? > > Click on "Calendar" > Click on "Open a Shared Calendar" (it is a link under "My Calendars") > A popup will appear. Click in the "Name..." button > A "Select Name" popup will appear. > > In this popup, there is a pull-down menu for "Show Names from the...". > If I choose any of the pull-down items like "All Contacts", "All users", > "All Groups", then sure enough I can see all the other companies, their > users etc.! > > How do I isolate these from one another so users in one company > ("Group") cannot see anyone except their own groups, members and > contacts? > > best regards > Mike > > > ------------------------------------------------------ > List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist > Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp > Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ > ------------------------------------------------------ > Other Internet Software Marketing Sites: > Leading Network Software Directory: http://www.serverfiles.com No.1 ISA > Server Resource Site: http://www.isaserver.org Windows Security Resource > Site: http://www.windowsecurity.com/ Network Security Library: > http://www.secinf.net/ Windows 2000/NT Fax Solutions: > http://www.ntfaxfaq.com > ------------------------------------------------------ > > > ------------------------------------------------------ > List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist > Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp > Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ > ------------------------------------------------------ > Other Internet Software Marketing Sites: > Leading Network Software Directory: http://www.serverfiles.com > No.1 ISA Server Resource Site: http://www.isaserver.org > Windows Security Resource Site: http://www.windowsecurity.com/ > Network Security Library: http://www.secinf.net/ > Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com > ------------------------------------------------------ >