If you are looking for a simpler desktop setup without a subscription, you might also consider alternatives like eM Client , which offers flexible pricing for individual users.
: For specific older versions like Outlook 2016, you may find product keys available through third-party retailers or marketplaces like eBay. buy outlook 2016 standalone
: Go to setup.office.com and sign in with your Microsoft account to link the license. If you are looking for a simpler desktop
: Run the installer and sign in with the same Microsoft account to activate the product. buy outlook 2016 standalone