Make a Mail Server on Fedora 18

guys.. i'm newbie here.. so please be nice...

so like the title says, i want make a mail server on fedora 18 can you help me ? or can you give a reference...

please just fedora 18 i don't want try other fedora version.. it's not that i smart or what.. it's just my friend give me a bet to make mail server on fedora 18....