Greetings for the day!

I need assistance on below issue related to MS-Outlook 2010.

I am having more than one mailbox/shared mailbox in MS-Outlook 2010. I have enabled the "Show an envelope icon in the notification area" its working fine when I get new email in my own mailbox, however it is not working for other mailbox it is not showing envelope icon notification when I am getting new email in shared mailbox/other mailbox.

Kindly suggest how can I get this issue fixed so that I can get envelope icon notification for email received in all the mailbox.