we're trying to make a email-adress (firstname.lastname@example.org) shared by two users (email@example.com, firstname.lastname@example.org)..
we created a shared mailbox (exhange 2010) and give user1-2 access to it.. it works great, they can access mail from the outlook.
however, that email@example.com email address is NOT in proxyAddresses properties of Active Directory objects for user1 and user2.
We have a third party system that pull information from AD and it cannot detect that user1 and user2 has access to firstname.lastname@example.org, since it parses proxyAddresses property of AD objects.
exchange UI does not allow adding that address as an alias.
is there a way to manually add that email to those users, from AD maybe?