Nadia Petrov Customer Education Lead at 4OVER4.COM
Nadia is our customer education voice, built from the knowledge of our production team, with over 20 years in printing.
Question
Can I mail an oversized postcard without an envelope?
Answer
Absolutely. Cards up to 6 by 9 inches can be mailed without an envelope. They simply lose the discounted postcard rate once they pass 4.25 by 6 inches, so larger cards mail at the First-Class letter rate instead.
- No envelope needed: postcards up to 6 x 9 in mail on their own.
- Rate change: anything over 4.25 x 6 in moves to the letter rate.
- Design tip: a scannable QR code lets recipients respond the moment they see the card.
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