Ok Falko, I have success. I had a mistake in one of the configuration files. So now that I can send and receive mails, I have a few questions.
Would I be able to train spamassassin? If I needed to allow certain mails that are being blocked as spam, how would I do that?
Also, are file attachments allowed to pass through or are certain exts blocked? How would I be able to allow/disallow them?
And last, is there an interface that I could use to access mails through the web? If yes, can you walk me through setting it up?
I really do appreciate the help and I must add that this tutorial was one of the easiest for me to use so far.