i'm setting new domain and exchange server, lets call it "test.com" and also i have and old domain "test.org". I want my clients login to new domain with the old account, and have mailbox. also i want if users login with new account, have access to the same mailbox. i tried linked mailbox but its not working with the account of new domain. maybe its better to explain in this way:
I want to have 1 mailbox for two users "user@test.org and user@test.com", and can open the mail when i login with each user.
so how may I do this?