A cloud-based service included in Microsoft 365, delivering scalable messaging and collaboration features with simplified management and automatic updates.
You should use the "Do nothing" option instead. The Purges folder has its own retention policy and will remove "expired" messages after 14-30 days. So items will be retained for 7 years, either in their original location (Inbox or other folder) or Purges (for items deleted at some point). After the 7 years period has expired, items in Inbox will remain in place, whereas items that made it to the Purges folder will be "released" and deleted after the single item recovery window expires.