We had migrate our mail system from Exchange2000 to Groupwise 2012, and there are several issues from me.
1. GW client is not stable in double byte environment, many input method（like Chinese traditional ) will cause the gw crash !
2. Novell support gave us a many builds of GW. the problem was solved in the first release,but the problem happens again in the latest build. We are fear to release the new build in our company
3. GW did not consider Asian's company culture.(for example , the sequence of receipts is important to asian's users)
4. We need a stable gw client not a fancy client. But GW2012 client is not stable in our environment!