[CentOS] Email/GroupWare Suite

Bill Campbell centos at celestial.com
Wed Jan 7 20:59:35 UTC 2009

On Wed, Jan 07, 2009, Bo Lynch wrote:
>On Wed, January 7, 2009 3:38 pm, Tim Nelson wrote:
>I would have thought that this was a small install:) We probably have at
>the most around 200-250. I was just guessing for growth. We too opt open
>source. Is zimbra a resource hog? Meaning do you think it would work with
>maybe a xeon quadcore with 4gb RAM?

Zimbra isn't too bad in terms of resources.  We have it running on a system
with several hundred users, primarily doing e-mail on a system with a
single Intel(R) Pentium(R) D CPU 3.00GHz and 4GB RAM.

My primary gripe with Zimbra is that it wants to take over a machine with
its own versions of openldap, postfix, amavisd, clamav, etc., and these are
not always kept current.  We have one Zimbra system running as a VM under
the free VMware server, allowing us to screen incoming and outgoing e-mail
with current versions of amavisd and clamav before passing it to the VM for
final delivery.

Zimbra also works independently of the Linux user system, which some
consider a feature, but I don't like as I like to be able to handle many
things at the user's $HOME directory level.  In particular we normally use
courier-imap with Maildir storage, and our own server-side filtering and
routing before delivery.

INTERNET:   bill at celestial.com  Bill Campbell; Celestial Software LLC
URL: http://www.celestial.com/  PO Box 820; 6641 E. Mercer Way
Voice:          (206) 236-1676  Mercer Island, WA 98040-0820
Fax:            (206) 232-9186

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