I read some threads about the usage of external imap server in place of the zimbra datastore (like cyrus imapd). In all these cases, like in mine , the members already as an IMAP server they know and use for years, with many (really many) mailboxes and messages. And changing their storage server should be a little bit difficult.
My question is simple, did anyone try or only think in making a zimbra connector to an external server? did anyone had some conclusions ? All threads on that subject were written last year.
Thanks for your help,