Essentially, I'd like to know what email addresses I have permissions to send emails from. Is it possible to get this information via the REST API? E.g., my primary mailbox is [email protected], but I've also added the alias [email protected] to this account and can send emails from both addresses.
Based on this post, I've tried using the GET: https://outlook.office.com/api/v2.0/me
API but it only returns the primary [email protected] address.