I need to find a way to perform a bulk import of a single contacts list into multiple Exchange 2010 mailboxes. Basically, since the smartphones (Droids in this case) can only access the default Outlook Contacts listing we need a way to make additions/deletions to this list and perform a bulk import to eliminate the manual process of opening Outlook and copying these to the Contacts for each individual user. There are too many users to make this a feasible option.
We've got the contacts in a single "master" contacts.pst file that we can modify locally within an Outlook client. We've used the New-ImportMailboxRequest cmdlet to import PST data before, but in those cases we were importing an entire mailbox from an old account into their brand new Exchange 2010 mailbox. Now we only need to import Contacts and overwrite each time.
I don't mind 3rd party software solutions, but anything native to Exch 2010 would be great.