Oui, j'ai besoin d'une solution
I've got a bunch of mailboxes that I want to fully archive. I've set the policy archive the lot and I've found that some of the mailboxes still have calendar items in them. I can't figure out why they aren't archiving. Looking at a trace on the server it analyses them and decides that they don't need archiving.
Archive Unexpired Calendar Events is turned On.