We're in kind-of the same boat - I'm trying to put together a costing for Zimbra NE, but (for old corporate policy reasons) we still have an installed Outlook 98 userbase of about 250. We could probably manage an upgrade to 2000 using exisiting Office 2k licences, but any higher than that and the cost just gets silly. Besides, I'd be much more interested in moving to an OSS client anyway so I'd be loathe to outlay for an MS product. Two way calander sync for Thunderbird/Lightning please?
Are the technical differences that profound between these versions of MAPI? I was under the impression it hadn't changed a great deal from 98 to 2k3? </naive>
Cheers!
Kev