Post, packages and parcels

Post Danmark is not the only provider when it comes to mail and parcel delivery ... nor the cheapest.
In Denmark you can rely on TNT, UPS, DHL and GLS for national and international deliveries.
If you're sending something within Copenhagen, you can also rely on Bring Express.
Comparing prices for a 20kg package, 40x40x40cm, international shipping between Denmark and the Netherlands, we can see how GLS is by far the cheapest provider available:

TNT
20kg, 40x40x40cm, 2 days, Economy express, 1991.98 DKK

UPS
20kg, 40x40x40cm, 2 days, Standard, 862.05 DKK

DHL
20kg, 40x40x40cm, 2 days, Economy select, 835.31 DKK

Post Danmark
20kg, 100x50x50cm, 2 days, max. Standard size, 697.00 DKK

GLS
20kg, 40x40x40cm, 2 days, max. L size, 262.00 DKK
20kg, over 40x40x40cm, 2 days, XL size, 313.00 DKK