So I have this scenario. I have a single 2008 AD domain with a working Exchange 2007 environment. I need to host a new external domain and keep it separate, with a separate GAL. I set up the new domain, which is externally facing, as an Accepted Domain under Hub Transport, accepted domains. I set up an email address policy to automatically append the new domain to users who have a mailbox setup and have a certain company name in that field. I tested email to a user I created like this, and it works. I logged in to owa for that user, and that worked. My problem is this. Of the users that will be working at a branch office and using this new domain, some users will by company employees. Some will be city employees. Of the city employees, they will only use the new domain and only use OWA access which already seems to be setup just fine. For the other employees that that are both company and city employees, I've been asked to give them two mailboxes. One for the city (new domain) and one for our regular company email, both hosted on our company mail system. How do I create two mailboxes and give 1 person access to it, without creating two accounts in AD? I'm trying to not do the only thing I can think of, which is to create a new mailbox account combo, and then just give the original account access to that mailbox. They need to be able to send email from either mailbox though and it look segregated. Also, how do I give some users access to only one GAL, and these other users access to two GAL's? Any help is greatly appreciated..

You must create two user accounts. But you may disable one and grant the working account Full Mailbox Rights on the mailbox and Send As on the user object. You can set both of these in the Exchange Administrative Console or Shell. As to segregating address lists, this white paper ought to help you. http://technet.microsoft.com/en-us/library/bb936719(EXCHG.80).aspx Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Thanks!

Is there a way to make both mailboxes show up and be usable in OWA?

Both accounts should show up unless you hide one from the address book. To use both mailboxes in OWA you have two choices. One way, probably the easiest one for the user, is to enable both accounts and direct the user to log on to the account corresponding to the desired mailbox. Another way is to open the desired mailbox via the URL. The following URL covers this subject. http://winzenz.blogspot.com/2006/08/accessing-another-mailbox-via-owa.htmlEd Crowley MVP "There are seldom good technological solutions to behavioral problems."

Ok this worked quite nicely. I setup a new GAL, then I setup 2 accounts with different alias (and other) formats to segregate them. I then modified the msExchQueryBaseDN field on the government users to specifically give them CN=Government,CN=All Address Lists,CN=Address Lists Container,CN=EXCHANGE,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=mydomain,DC=com Then when i logged in to OWA for the government side account, they only saw that GAL. I'm not sure what I'm going to do yet about making two accounts visible in OWA. I think that's just a limitation of OWA as opposed to Outlook. thanks for the help!