...so, sorry for not understanding a few things in advance...
ok, i work for my father and his medium to small size company. I would like to slowly turn my current laptop into a web and mail server for the company. the first thing i would like to learn is how to setup a mail server. i'd like to start small, like, only sending and receiving mail as a single user from my laptop. then i would like to set it up so that various users on the network can fetch their mail from this laptop.