Re: Activesync / Exchange - Issue - Have to reset settings frequently...
Oh my bad, didn't notice it was just messages. That's definitely strange!
I can't recall if there's an option on Activesync on the device, but see if you can enable "Download headers only" and see if the problem continues. If it does, then it's most likely an issue with the Exchange server.
Do you know if your server pushes sync settings to the devices? Because maybe it's forcing the device to download other data even though you say otherwise