Server side message rule stops 3rd party outlook meeting requests from going in the calendar

Hi,

So I have a situation where 4 or 5 users all have separate local POP3 email (yes I know, I know) share a calendar by emailing each other meeting requests to populate their individual calendars. Outlook deals with this just fine. (Outlook 2010) I might add.

An additional user has an account on axigen. He gets these meeting requests which go into his axigen calendar just fine but his android mail client (Gmail) shows heaps of emails full of the outlook nonsense that makes the Microsoft magic work. He uses oneCalendar Android app to view the axigen calendar over caldav.

I set up a server side message rule to move these emails out of the way to a folder BUT that STOPs the server from processing them and putting them in the axigen calendar.

Is there a way, server side, to process the emails as Calendar entries and then move them to a folder (or frankly just delete them)?

Thanks,

Andy.