I mainly access my zimbra account on my desktop using Mail.app, connected via IMAP. I also access zimbra on my iphone and ipad using Exchange Activesync protocol.

In the past few days I've noticed that messages I file away in IMAP aren't going away from my inbox on my phone.

I've checked on the zimbra web interface and they are filed away properly, so it seems activesync is missing something.

My phone does get new messages, and messages I read and delete are removed - just the ones that were filed away

I can't see any errors in the logs - sync.log just shows my syncing normally. Any ideas?