This addon adds a new type of backend for fetching incoming mail, based on MS Graph services using modern OAUTH2 authentication framework. This is a response to Microsoft's announcement about the expiration of Basic Authentication for IMAP / POP.
Templates and Multi-forms allows you to display different dynamic fields based on the selection of type and service. It gives you the chance to create multiple forms totally different from each other because it will hide and show dynamic fields based on your type and service selection giving you the opportunity to have an unlimited variety of forms that you can use for all your different processes.