Stop Outlook 365 for Mac from deleting inbox mail after 30 days on M2 MB AIr?

Stop Outlook 365 for Mac from deleting inbox mail after 30 days on M2 MB AIr?

On my new 2022 MacEbook Air M2 (OS 12.5.1 Monterey), in Outlook 365 for Mac v. 16.65, my private IMAP electronic mail account [email protected] deletes inbox emails after 30 days. I'm utilizing the Old, NOT the "(*30*) Outlook" choice. How...