I was trying to set the OWA mailbox policy that I had created as the default one and to my surprise there is no option to do it, even in the Shell. Let me know if anyone had any joy doing this.
The default behaviour is that even when you only have a single OWA mailbox policy (default), it doesn’t stamp a newly created user with that.
You have to go and set it every time you create a new mailbox. Why Microsoft? It doesn’t make any sense! As most of the users use OWA these days (as it has a great look and feel), everyone needs a standard policy. I can’t think of any reason why Microsoft had skipped a simple option of configuring policy as the default one and making it available to all users by default. Of course you can automate it using the scripting agent, read here
For some reason, you can set an ActiveSync mailbox policy as the default one though! Run the command below in order to set an EAS mailbox policy (named HEW in my case) as the default one.
Set-ActiveSyncMailboxPolicy “HEW” –IsDefaultPolicy $true