Play Video Shake your mailbox day!!! This Saturday, October 28, 2017!!! Posted on October 23, 2017 at 4:05 pm.Written by Jake Welch If your mailbox moves when you shake it, it could be knocked over by snow thrown from a passing snowplow. Make this Saturday the day you “Shake Your Mailbox!” Check out the You Tube link below to see more info. https://youtu.be/6KeytQkQY8Y. Comments are closed.