Once we open a claim with Canada Post, the investigation involves contacting the addresseer to better understand how they receive their mail and to see if the receiver has done their due diligence to acquire their package, such as: Checking with their front desk, security or mail room at the receiving address to see if someone else may have accepted the item on their behalf; their Community Mail Box for the item or parcel compartment key; around their property to see if the item was left in a safe location or in a mailbox attached to their home.