Hey guys i know there has been reports of using ovi mail with nokia messaging and it does not sync with the client. I as well had the same issue, but found the solution so figured i share it with everyone, rather than random reports coming in that it does not work.
In my case i had ovi mail added to my nokia messaging client and was not receiving email.
So just go ahead remove your ovi mail account on your nokia messaging client then add it again, problem should be solved.