Junkmail Robot

From Tardis Wiki, the free Doctor Who reference

Junkmail Robots were robots 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 from Kerblam!, another Delivery Bot. Like the Kerbl!am Man, the Junkmail Robot was able to breach the TARDIS.