What is ""επιστροφή αλληλογραφίας"" in American English and how to say it?

Greek

επιστροφή αλληλογραφίας

επιστροφή αλληλογραφίας-returned mail.svg
American English

returned mail

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Example sentences

American EnglishIt's returned mail because I wrote the wrong address on the envelope.

How To Say ""επιστροφή αλληλογραφίας"" In 45 Languages.