e-Newsletter - How to fill in Outgoing Email Settings and Bounce Settings?

Hi,

I have installed e-Newsletter plugin and confused on these two steps:

Outgoing Email Settings
Bounce Settings

I have some questions here - what are these? What is my SMTP Outgoing Server or SMTP username/password? and so on..

Could you please explain all fields here?

Thank you very much!

I think this will help some other members too.