Why Your Letters Get Returned: the Critical Envelope Addressing Mistakes Most People Make
Global postal dispatch requires following international mailing standards governed by the Universal Postal Union (UPU). The primary requirement for US senders is straightforward: the destination country name must appear completely on its own, written in all capital letters on the final line of the address block.
DR HELENA MEYER
KURFURSTENDAMM 214
10719 BERLIN
GERMANY
Never abbreviate the destination country name. Writing "UK", "GER", or "UAE" on that final line frequently routes letters to wrong regional dispatch hubs.
Postage requirements also change at the border. Standard domestic "Forever" stamps do not cover cross-border transit on their own. International shipments require specific Global Forever stamps or equivalent postage, currently priced at $1.65 as of early 2026. If weight exceeds one ounce, the envelope must clear postal scales at a physical retail counter to prevent return-to-sender flags for insufficient postage.