You'd have to program your own alert. If the folder is opened already in
your profile you can subscribe to the ItemAdd event in the Items collection
of that Inbox and display your own alert. The native Outlook alert only
fires for your own default delivery location.

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Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm
> Does it have any chance to create Desktop Alert for additional mailbox
> connection. ?Since desktop alert is able to show default new incoming
> mailbox.
> How to do that ?