This movie involved a romance in which the guy delivers his lover a letter through the mail, at a post office, then suddenly as he's crossing the street gets runned over and dies.

The airplane that's delivering the mail, crashes shrtly after take off into a remote mountainside and the mail gets lost.

Fast forward 5 years later, and a mountain back climber finds the wreckage of the crashed airmail plane and the mail is recovered and sent to his lover , who by then had lost all hope to find her diseased lover. She says "why would I want a letter, that is 5 years old ", and thus she burns it, I think.

If anyone remembers what this movie is would be really great to know. Thanks.