I had the same problem after changing the service account of backup exec.
The solution in my case was giving the new account rights on all the exchange
mailboxes (in exchg system manager, right click on the mailbox-store...).


"Daniel " wrote:
>
>The problem appears when you attempt to select the Microsoft Exchange server
>folder; it's requesting a unique Mailbox. But we have created an account,
>but it doesn't seem to like it. We've tried an administrator mail box nothing
>seems to get us past this prompt. Also the password screen is grayed out.
>Any thought on how to get past this to back up everyone’s mail box Individually?
>Thanks
>

Hi Daniel,

did you run BE under the same Account like the Services are running? You
must use the same account for the Services and the log on to the Server and
theese account must have a Mailbox on the Server because BE use the MAPI
function for the Mailbox access.

Didi you install Outlook to the Server? When you do which version, 2000 or
xp, don't use xp it makes trouble.

Hope it helps

Jan


"Daniel " schrieb im Newsbeitrag
news:3fce6f17@ROSASTDMZ05....
>
> The problem appears when you attempt to select the Microsoft Exchange
server
> folder; it's requesting a unique Mailbox. But we have created an account,
> but it doesn't seem to like it. We've tried an administrator mail box
nothing
> seems to get us past this prompt. Also the password screen is grayed out.
> Any thought on how to get past this to back up everyone's mail box
Individually?
> Thanks
>