title: Is it possible to retrieve the RFC 2822 (or any) headers from an email with the Outlook/Office 365 REST API?
body: <p>An application I am working on needs access to the headers of an email - specifically ones like <code>return-path</code>, <code>in-reply-to</code>, and <code>references</code>. Ideally, we would love to be able to access all of the RFC 2822 headers of the email. Is this possible with the Outlook/Office 365 REST API? If not, is it possible with any API?</p>