Is the following behaviour normal?

I use ActiveSync with an Exchange 2007 on the N900 and all the mails I get end in a notification, no matter in which folder they get sorted. I get a lot of mails from services, which are put in different folders on the exchange server, so this is pretty annoying. I only want a notification for mails in my inbox.

I didn't have this problem with the same server and a Windows Mobile 6 device.

Everything else with ActiveSync works pretty well for me.