I have been searching for almost 2 days now. There's a lot of imap related topics. I have looked at my /etc/imapd.conf but that doesn't tell me anything.
The UWIMAP package that came with RH9 has been dropped in favour of Cyrus IMAP, this provides IMAP and POP3 (as well as secure version of these!).
I saw where POP3 is 'supposed' to be provided. But why can't I get my mail via pop3.
You can. The package you need is dovecot. Configure it using the file /etc/dovecot.conf
You can also use pop3s with dovecot to avoid sending your POP3 password in clear text over the Internet, but you'll need to make an SSL certificate for that. No need for qpopper though.
Paul.