First-Class Mail International® is the most affordable mail class for sending postcards, letters, and flats to Canada and over other countries. Use Global Forever stamps to send letters or postcards weighing up to 1 oz anywhere in the world. The price for First-Class Mail.
First-Class Mail International®. Affordable International Service. Our most affordable option for postcards, envelopes, and flats. Send non-prohibited mailable.
First-Class Mail International® (FCMI®) is our most affordable option for sending postcards, letters, and large envelopes weighing up to
The US Postal Service's First Class Mail International is an affordable way to send mail—including letters, bills and postcards—and small packages weighing .