My organization has acquired a few Nokia 822 phones running Windows Phone 8.
My attempts at syncing our old GroupWise 6.5 SP4 email server with the phone have proved unsuccessful.
I've tried using the advanced setup option for IMAP4 mail. There is an option to use two different IMAP4 servers for the incoming and outgoing mail. What I do is use IMAP on GroupWise as the incoming server and Gmail's IMAP for the outgoing server. I can set it up so that mail recipients think the message came from my domain instead of Gmail.
This requires a Gmail account for the user.
I've used this technique to sync Android phones to my mail server using the K9 App from Google Play. It works wonderfully. I can send and receive mail from the Android phone using this technique.
While the native mail client on Android will at least download mail from the GroupWise server, the native mail client on Windows Phone 8 will not communicate with the GroupWise server at all.
This will all be moot in two months, as we are moving to Google Apps for Business and Gmail. But until then if anyone has any ideas of how to get this device to sync with GroupWise 6.5 SP 4, I'd appreciate it.