I'm not sure I can answer that one.

If you can't forward your POP3 account to the EMM account then I don't see how it'll sync with their servers. Your POP3 account doesn't allow any sort of mail forwarding?

Maybe you can set up a forwarding rule in Outlook. So that when a new POP3 message comes in it's forwarded to your EMM address?

You might want to also change the reply address for your POP3 account to your new EMM address as well.