All postal addresses in SendRegning consist of the following properties:
||First line of the address||String||64 characters|
||Second line of the address||String||64 characters|
||Postal code||Yes||String||8 characters|
||A valid country name from our list, Countries. Default is NORGE||Yes||String||64 characters|
Country needs to be a valid SendRegning country, since we need to know the postage fee if an invoice is sent by paper mail.
This again means an address on recipient needs to obey this as well, since the system can transfer this value from the recipient to the invoice when issuing an invoice.
If country is omitted, the system uses NORGE as default.