You can archive virtually any Outlook item, including these:
Although you can archive all of these items, in Outlook, you actually set the archiving options on a per-folder basis. This basically means that each folder that you have created in Outlook can have different archiving options defined for it. This enables you to precisely define which items from each individual folder to archive.
Outlook provides a feature called AutoArchive that enables you to configure Outlook to automatically archive your items on a schedule that you define (FAQs 16.12, 16.15, and 16.16 explain how to use the AutoArchive ...