料金 りょうきん後納 こうのう郵便 ゆうびんじゃないです
ryōkinkōnōyūbinjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 料金後納郵便

1. It's not postage-due.; It's not a postage-due postcard.

Negative
Polite
Casual Register