Understanding AutoArchive Settings
Inbox and Drafts
Sent Items and Deleted Items
When the aging period starts
The received date/time or when you last changed and saved the message, whichever is later.
Calendar meeting, event, or appointment
The date when you last changed and saved the item, whichever is later. Recurring items are not AutoArchived.
The completion date or when you last changed and saved the task. Tasks that are not marked complete are not AutoArchived. Tasks assigned to other people are archived only if marked complete.
When you last changed and saved the note.
The date the Journal entry was created or when you last changed and saved the entry.
Contacts are not archived by default. However, you can manually archive them.