Update: after a lot of negative publicity, the USPS has apparently backed off on its demands:
U.S. Postal Service officials agreed to resume delivery in the Brooklyn neighborhood, where dozens of residents were threatened with the permanent loss of home delivery and ordered to install mail boxes that were easier for the carrier to reach, Assemblyman Dov Hikind said.
“The mail will go through,” Hikind (D-Borough Park) said in a statement.
A customer-service manager at the 51st St. post office sent letters to area households, outlining the draconian demands and saying the change was needed to prevent injury to the carrier.
Original story:
NEW YORK (CBSNewYork) — Some Brooklyn residents with mail slots in their doors are not getting their mail.
Hundreds of Borough Park residents were first told by their local carrier that their mail slots are too low and later received letters from their local post office saying that their mailboxes are not in compliance and need to be relocated, according to Assemblyman Dov Hikind (D-Brooklyn)
via Post Office Nixes Delivery To Some Brooklyn Residents With Low Mail Slots In Doors « CBS New York.