Royal Mail bosses will personally post letters in a "no-go" street in Essex where deliveries have been suspended because of alleged attacks on postmen.
Families in Vermont Close, Felmores, Basildon, have had to pick up mail at a local sorting office because the Royal Mail refused to make deliveries.
But managers decided to personally make a one-off delivery on Friday to ensure homes get Christmas post on time.
Staff will make deliveries in pairs because of continued safety fears.
Officials have complained to police that postmen have been attacked in the street - it is alleged that on one occasion a postman was soaked in urine.
Police say they are investigating the allegation.
A Royal Mail spokeswoman said: "Managers will go out in pairs to deliver mail so that the people living in the street get their Christmas post.
"This will be a one-off service and apart from that the suspension of deliveries will remain in place until the problem has been solved.
"Refusing to deliver mail to an entire street is a very unusual move but we have to ensure that staff are safe."