Washington - Postmaster General John Potter today announced Susan M. Plonkey as acting president, Mailing and Shipping Services. Plonkey succeeds Robert F. Bernstock, who is leaving the Postal Service effective June 4 to pursue interests in the private sector.

As acting president, Plonkey is responsible for all product management, product development, retail and commercial products and services, as well as commercial sales. The division is responsible for more than $65 billion in annual revenue.

Prior to this appointment, Plonkey served as vice president of Sales, where she led the integration of the Postal Service's sales and service organizations to address the needs of commercial mailers, from small- and mid-sized enterprises to large businesses. Beyond sales, Plonkey's broad marketing and field experience as vice president, Business Customer Relations; district manager; plant manager; and postmaster provides her with invaluable perspective on operations and customer support.

Plonkey holds a bachelor of science degree from Kansas State University and a master of business administration degree from the University of Central Oklahoma.