Sending mail past national borders requires adjustments that satisfy both domestic export sorters and the destination country's local postal authority.
The recipient block must conclude with the full destination country name written in uppercase English letters on the very last line. Never combine the city, postal code, and country name onto a single row.
Different regions position postal codes differently. While the United States places the ZIP code after the state name, several European nations, such as Germany or the United Kingdom, place postal codes before the town name or on an independent line. Transcribe the international recipient's local layout exactly as provided, but always isolate the final country name on the bottom line.
