[LMStone]

Hi JayBee,

You may be thinking of the Zimbra web UI as a next-generation Horde or Squirrelmail interface, which I can certainly understand. Both Horde and Squirrelmail feature solid integration with a variety of backend systems.

In my experience, I think it is more accurate to think of the Zimbra system as an appliance, where Zimbra simply encourages the customer to utilize their own hardware and OS.

That Zimbra uses components like Postfix, Amavis, SpamAssassin, and supports us tweaking those components, Zimbra in my mind is still really an appliance at the end of the day. It's a package deal; all or nothing.

Hope that helps,
Mark