Delivery firms and retailers say they're looking at alternative ways to ensure people receive online orders in time for Christmas.
Hundreds of thousands of parcels have been delayed because of damage caused to port infrastructure in Holyhead in Wales by Storm Darragh.
Authorities say it could be next week before ferry services are restored there.
However An Post says its backlog of half a million packages has been cut to just 150 thousand in the past day, as hauliers find alternate routes through Pembroke, Liverpool and Stranraer.
For the latest Waterford News and Sport, tune into WLR News on the hour and download the WLR App for news on demand.