Authorities say it could be next week before ferry services are restored at Holyhead.
Hauliers, 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 cause to port infrastructure in Holyhead in Wales by Storm Darragh.
Authorities say it could be next week before ferry services are restored there.
An Post CEO David McRedmond says they've cleared a huge number of packages overnight.