I'm using Red Hat 9, iptables and sendmail.
I have my mail server functional and firewall allowing all internal (eth0) connections to check their mail.
What I can't seem to get to work is so that people externally-over the internet to have pop3 accounts. I would like them to be able to use outlook express instead of having to go to the web page everytime. I have tried opening port 25 on iptables. What do I need to do and how??
thanks very much