I'm setting up my first Exchange server, which will import ~150 mailboxes from an offsite IMAP server. Obviously, I'd like to create these accounts en masse, but the creation process isn't straightforward as it seems.
I can select multiple accounts via Exchange Management Tools, and create all of them simultaneously, however, they all create address resembling email@example.com.
They need to be firstname.lastname@example.org
For example, John smith appears as email@example.com - I need firstname.lastname@example.org
Hopefully this doesn't require too much scripting?