Junkmail Robot

Junkmail Robots were Delivery Bots used to send messages.

Kingpin once used a Junkmail Robot to contact the Seventh Doctor for help. (AUDIO: The Psychic Circus)

Behind the scenes
The Junkmail Robot strongly resembles a Kerb!am Man - another Delivery Bot. Like the Kerbl!am Man, the Junkmail Robot was able to breach the TARDIS. (TV: Kerblam!)