Office 365: Outlook — limit sync to 30 days

As of Outlook 16.23 (February 2019), such a feature to limit the email downloaded by date does not appear to exist. There's a feature request on Outlook's UserVoice forum for this functionality.

For an IMAP account, under the account's Advanced settings, you can configure Outlook to only download headers.

screenshot of the location of the Advance button under an account's settings

screenshot of the download headers only option checkbox

There is nothing similar for Exchange accounts.