American Postal Workers Union v. React Postal Services, Inc., Mountain Bell Telephone Company and United States Postal Service

BARRETT, Circuit Judge.

React Postal Services, Inc. (React) and the United States Postal Service (USPS) appeal an injunction barring React from conducting business as a presort letter mailing firm. At all pertinent times, React has collected the mail of its customers and clients at its various collection boxes in the Salt Lake City metropolitan area, presorted that mail, and presented the mail at the nearest USPS post office with postage affixed at USPS discount rates. A specific description of React’s operation follows:

Background

Phase I

In April, 1982, React installed letter collection boxes…