An address for sending email via UUCP that specifies the entire route to the destination computer. It separates each hostname with an exclamation point, which is known as a bang. For example, the bang path
midearth!shire!bilbo!jsmith would go to the JSMITH user account on the BILBO host, which is reached by first going to MIDEARTH and then SHIRE. See
UUCP.