The California Mail on AllMovie

A stagecoach race, murder and a singing cowboy are the main ingredients in this pleasant western from Warner Bros. The singing cowboy is Bill Harkins (Dick Foran) who, after losing a Pony Express contract, bids against the Banton brothers for a lucrative stage line deal. But Roy Banton (Edmund Cobb), who is also Bill's rival for the lovely Mary Tolliver (Linda Perry), does what he can to sabotage the race and later frames Bill for a stage robbery and the murder of Mary's father (James Farley). Fortunately, Bill's mount, Smoke, fully lives up to his nickname of "Wonder Horse" and eventually leads the innocent youngster to the real murderer. While not engaged in such manly pursuits as stagecoach racing and fist fighting, Dick Foran warbles M.K. Jerome and Jack Scholl's "Love Begins at Evening" and, backed by Roy Rogers and The Sons of the Pioneers, "Ridin' the Mail".