Hello! Stumbled onto this site and noticed your questions.
I believe this is the movie you're looking for:
The Letters
1973 - USA - 74 min. - Feature, Made for TV, Color
AMG Rating
Director Paul Krasny, Gene Nelson
Genre/Type Drama, Ensemble Film
Keywords letter, mail, slice-of-life
Tones Bittersweet, Tearjerking, Sentimental
Produced by ABC Circle
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Letters begins with the crash of a U.S. mail plane. One year later, cheerful postman Henry Jones delivers the long-delayed letters. These overdue missives profoundly affect the lives of (a) a man who's deserted his wife; (b) a woman anxious to break up her daughter's romance; and (c) a pianist who'd sell his soul for success. The guest star roster of this TV movie includes John Forsythe, Jane Powell, Lesley Ann Warren, Ida Lupino, Ben Murphy, Pamela Franklin, and Leslie Nielsen. Both Letters and its sequel Letters From Lost Lovers (1973) were intended as pilot films for a never-sold TV anthology series. — Hal Erickson
Leslie Nielsen - Derek Childs
Ben Murphy - Joe Randolph
Jane Powell - Elaine Anderson
Lesley Ann Warren - Laura Reynolds
Ida Lupino - Mrs. Forrester
Pamela Franklin - Karen Forrester
John Forsythe - Paul Anderson
Henry Jones - The Postman
Dina Merrill - Penelope Parkington
Barbara Stanwyck - Geraldine Parkington
Paul Krasny - Director
Gene Nelson - Director
Tony Thomas - Producer
Paul Junger Witt - Producer
James G. Hirsch - Screenwriter
Ellis Marcus - Screenwriter
Hal Sitowitz - Screenwriter
Donald M. McAlpine - Cinematographer
Leonard J. South - Cinematographer
Tim Southcott - Cinematographer
Pete Rugolo - Composer (Music Score)
David Berlatsky - Editor
Sid Levin - Editor
Carroll Sax - Editor
Robert L. Swanson - Editor
Joel Schiller - Production Designer
Tracy Bousman - Art Director
Leonard J. Goldberg - Executive Producer
Aaron Spelling - Executive Producer
Please check:
www.allmovie.com
Does anyone remember a movie in the early 70's ,it may have been called the letters,can't remember.It was a tv movie and it was on once a year i remember seeing it at least twice.I don't know why Bobby Sherman comes to mind.But it was about a mail man who lost his mail sack(maybe in a storm)and there were three very important letters in his sack that never got sent.Years later someone found these letters and sent them out.But it shows how peoples lives were changed due to not receiving the letters.It would be great if i could buy a copy of this somewhere.I don't even know what station it would have been back then,as there are so many new stations now.Any help would be greatly appreciated.Thanks