mail server w/ global address book
I'm trying to upgrade a freaking win95 machine running microsoft mail on a pentium 75 w/ 16megs of RAM. This is our internal mail server, it's pretty stable but give me a break. Obviously I'd like to use linux. I've set up linux mail servers before using sendmail, however all of the clients here (running outlook) are used to the shared address book. I've heard of several good solutions including HP Openmail and Bynari tradeserver, I'm wondering if anyone knows of any free solutions?? Also, for now I'm trying to avoid LDAP.