We have a groupwise 2012.0.3 server with GMS 2.0.
When we send an email from a windows phone (8 or 8.1), this message is well in groupwise client, but not in outlook client.
The special french characters (, , , etc...) are tranformed to chinese characters in outlook 2010 client, or "?" when we use thunderbird (last version).

So, I think there is a mime problem in gms, but how can I resolve it? (maybe it's not that!?)

Can you help me?