You either send message to individual mailboxes or create Distribution List
(containing all those mailboxes) and send message to that DL.
> There are about 3500 mailboxes in our organization. How can I send a e-mail
> addressed to all of them? Is there a possibility in the Exchange Admin
> program? Or do I *really* have to export all mailboxes and then look for a
> program which reads out the addresses from within the exported file??
If you feel that anything in my post needs correction - feel free to do so.
And please, keep all discussions in NG, so that everybody can participate.