[CentOS] MS Exchange Replacement

[Bill Campbell]

On Sun, Apr 06, 2008, Joseph L. Casale wrote:
>>What about Zimbra or Scallix?
>>
>
>Zimbra looks impressive! Anyone here running it?

We have Zimbra running with several hundred mail users on a
CentOS 4.5 system (it wouldn't run on CentOS 5 when we started
the project).

It works well, but does not play nicely with others, basically
taking over major parts of the system, postfix, openldap, IMAP,
etc., and does so in a manner that makes it difficult to
integrate in some systems (e.g. put it behind a postfix, amavisd,
clamav, spamassassin system that I can keep current with the
Latest & Greatest updates, and configure DNSRBLs to my liking).

I like to think I have better solutions for e-mail handling than
Zimbra, and much prefer to use them unless there's an absolute
demand for Exchange functionallity.

I won't get into the licensing religious wars, nor do I mind
paying for proprietary solutions if they do a better job for my
paying customers than I can do with open source.

The horde/imp/kronolith/... family of programs, provide good
functionallity, but, like any webmail solution, have some basic
limitations due to the web interface.

Bill
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