Is there a way to create custom Outlook folders in Office 365 like MRM did? I can apply retention policies and tags to custom folders with no issue to existing users migrated from Exchange 2007 since they already had the folders. For example, folders might be named "HR -retain for 60 days" or "Legal -retain indefinitely". But this is an M and A project and so we are migrating users from another company's forest into our Office 365 environment and they won't have the custom folders and we would like them to have them.
Any input is appreciated.