>>>>> "ja" == Austad, Jay <austad at marketwatch.com> writes:

ja> The only other real alternative to Exchange is Lotus Notes which
ja> can run on Solaris.

Bynari has been selling something called TradeServer (now called
Insight Server, I guess) that claims to be 100% (or damn close)
compatible with Exchange.  (Probably not Exchange 2K, though.)  Runs
on Linux/x86 and Solaris/SPARC platforms.

See http://www.bynari.net/ for more info.  I know little about it,
aside from LinuxPR announcements a while back.

-Scott