well we've migrated to now use the Zimbra server, data is still transferring from the CMGPro server...
So mail is still going across and my PERL hack is running to deal with the MAPI calendars / contacts.
I've got about 100+ users who didn't use the MAPI connector who will be migrated at a later date to use the Zimbra connector, I'll probably use the PST Converter for them.... but we'll see.
I'll post up user feedback and also other comments over the next week or so.
Looking forward to finally killing the CMGPro server I must say.