In February, Mijn PostNL will be updated (the exact date will be communicated later on). When the portal is updated, you will have more options which you can select for sending parcels to Belgium.
Please note that, when you do not select any additional services for sending to Belgium, these won’t be automatically included in the service as is now. You will have to select te services that you would like to add separately.
As soon as more information is available, this will be shown on this page.