Methods of manufacturing a medical article that include radial deformation of a polymer tube are disclosed. One typical embodiment comprises front and rear corrugated cardboard panels that are draped over a door by way of one or more pieces of saddle tape that join the panels along their respective top edges. A determination that the message is from a trusted email address may be made based, in part, on whether the email address is associated with one’s address book, a degree of separation that may be determined based on an association with another’s address book, whether the email address was a sent email address, and the like.