Android notification system

[StarStruck]

I thought android was high consciousness. Leo bragged about Samsung so I bought a good one. Omg,  I'm just trying not to pull my hair out.

I'm tech savvy and a programmer so I know how to tweak a simple OS. So this is the problem:
When I receive emails I don't get notification on the screen.

Just a moment ago I got an email. Coincidently I heard the email sound. Otherwise I would never know about the email. It DOES show up in the notification system when I scroll down, but it DOESN'T show on the main screen.

With main screen I mean the screen that pops up after you turn the screen on. It has a time stamp on it and below it does show notifications of other apps but not the most important app which is outlook.