I have Outlook 2013 connected to my HP e-mail address and a Microsoft account with which I log into my computer (my Microsoft account uses my same hp e-mail address). But my lock screen does not show me e-mail notifications. I know only the new apps can show notifications and the old desktop apps, like Outlook, cannot, but the Mail app seems to be not running, on the Start screen it is just an icon, pretty inactive, so I thought it just isn't hooked to my Outlook. When I open Mail it prompts me to add an e-mail account, but when I enter my credentials it just says that this e-mail is already added. There are no other options whatsoever. I just want my lock screen to display e-mail notifications, but i don't know how.
I've already checked "PC settings" > Personalisation > Lock screen, the mail notification is turned on.
Basically I want to know how to connect my Outlook HP.com account to the Mail app, when it tells me that it is already added, but it is neither displayed nor functioning.