I am looking for a newsletter plugin with which I can send

Hello,

I am looking for a newsletter plugin with which I can send a newsletter to registered users who have agreed to receive it.

Now I am not sure if e-newsletter is the one I am looking for.

And I do not know what to type in for e.g. SMTP or PoP3 ...

So basically I need help with the Outgoing eMail Settings & Bounce Settings.

Thanks a lot for any help!

Fabian