Linux Exchange Server Alternative
Just wondering if anyone has any information/thoughts relating to the following:
I want to replace Microsoft Exchange Server 2003 with a Linux alternative - the issue I now have with Exchange is it's limitations in creating multiple domains.
I need to have the ability to create multiple domains/sub domains; the version I have is for small business users and I'm limited to one - the next version up takes me into the £4k bracket and here I'm limited to 5!!
So, I have been doing some digging and I have found the following providers of middleware which will allow for seamless integration of Outlook sharing via IMAP:
Zarafa Outlook sharing on Linux - Home
www.bynari.net - Insight Connector for calendar sharing
PostPath: New Home Page
On initial investigation there is no mention of these products and if they have constraints on domain creation? Does anybody know of such a product which will allow for unlimited or at the very least 50 domain creations, compatible with Outlook and will run off Red Hat Enterprise Linux?