Microsoft's official documentation for Graph API access to Archive mailboxes is non-existent, and what people cobble together on public sites like StackOverflow is highly contradictory:

1. https://stackoverflow.com/questions/52991085/how-to-get-messages-from-archived-mailbox-using-ms-graph-api
2. https://stackoverflow.com/questions/36939501/how-to-get-in-place-archive-mailbox-in-exchange-online-using-office-365-apis
3. https://stackoverflow.com/questions/36939501/how-to-get-in-place-archive-mailbox-in-exchange-online-using-office-365-apis

(some say it's impossible, some possible, but suggested solutions don't actually work).

Suggestion:

1. If it's possible to access Archive mailboxes (not just the regular archive folder in the normal mailbox!) via Graph API, document it properly.
2. If it's not possible, make it possible.

Thanks!