Residents are warned to expect some changes to postal deliveries in Emsworth.
Revised routes and new delivery methods are being introduced in phases in the PO10 area.
Post will still be delivered in the morning and for a longer period during the day and many people will continue to receive their post by lunchtime. However some post may arrive later.
Royal Mail says changes need to be made as fewer letters are posted.
New equipment is being introduced to enable larger items to be carried more securely reduce the risk of injury to staff.