[SyncEvolution] How to defie the Maximum number of occurances for a property.

Dear Patrick, I am developing a synevolution client using libsynthesis.I want to know that how do i tell a server maximum occurance supported by my client for a property.For Example: I have two different synchml clients as A and B. Client A can support 8 addresses under Email property. Client B supports only 3 address under email property. client A has saved contacts on a server where under Email property it has saved 8 mail addresses. Now how does B tells server that Max occuances of Email property supported by it can be 3 only. Regards , Anuj Chauhan