How to forward an incoming email in Outlook 2010 through another account?

Question

POP3

There is a server (MS 2008 R2), there is MS Outlook 2010, it uses two accounts.
One corporate account (EXCHANGE, hereinafter E) - , the second is configured (POP3, hereinafter P) via a secure connection (and therefore cannot be installed personally on any machine in the office) to receive important letters of a certain subject. Account P cannot forward letters to account E, but can make a copy of the letter in the folder structure of account E (configured by a rule in Outlook). The problem is this! Since the server is not accessed via RDP so often, the notification of the letter can be seen even when the information is not up to date and you have to answer for it.
Account E is connected as a public box for 3 users and having its own personal corporate account + archive, in the structure the additional box is so out of sight that almost none of the three participants ever sees it. The task is as follows...
How to set up a message sending rule in Outlook using the local account E, which can send to all three participants. Make it so that three participants have a pop-up message about receiving an email.
I say right away:
1) There is no way to log in every 5 minutes via RDP ..
2) Access is initially blocked, there is no way to forward letters from the P account.
3) Scrolling every 5 minutes is also not possible.
4) Even if the public account E is made the first in the list, no one will see the notification and, again, the matter will be delayed. Nobody looks in Outlook every minute.
Perhaps the question is funny and moronic, but I would like the advice of the system administrator. Thank you very much!