A device for handling (1) postal objects, which receives at input a flow of plane rectangular postal objects and has a plurality of selectable outputs (11) to which sorted and/or sequenced postal objects (7b) are fed. Each output comprises a rectilinear channel (70) delimited by a bottom wall (69) and by lateral sides (68) and defining a rectilinear direction (71) of advance for the postal objects (7) that are fed to the channel where they form a pack of objects stacked on top of one another; a paddle (74) is linearly mobile, in opposite senses in the rectilinear direction (71) within the channel (70), and an end portion of the pack is designed to bear upon the paddle. A portion of the paddle (74) is angularly mobile about an axis of rotation (77) with respect to a slide (75) that carries the paddle and is mobile parallel to the rectilinear direction (71); the distance H between the axis of rotation (77) and the bottom wall (69) is greater than the maximum height h_op of the postal objects processed by the machine defined as the dimension of the minor side of the object (7).