Hello Song,
The company I work for has used Merak Mail Server for a few years
since version 4. They're now at version 7 with their GroupWare
release. When we started using it we had roughly 5500 users and
migrated from Imail due to stability reasons, now we have over 32,000
users on a dual 3 gig Xeon server.
Since we first began using it, they have made a whole slew of
additions including Antivirus which supposedly scans over 2000
messages per second, instant messaging which we have only deployed for
our own internal use but like it quite a lot. However, their most
impressive component is the antispam solution that we began selling as
an added value to our customers. Those who are using it report near
100% accuracy. This is exactly what Merak advertises and we were quite
skeptical at first but with a little, and I do mean little,
configuration it works as advertised.
I highly recommend taking a close look at it.
http://www.merakmailserver.com
Oh, our server has been running on Windows 2000 Server without
interruption for over 2 years, with the exception of one blue screen
which we could not attribute to Merak.
I hope this helps.
Happy New Year.
Pat Choi