Write the recipient’s full name on the first line
Write the street address or P.O. box on the second line
Write the city, state or province, and postal code on the third line
Write the country on the last line if sending internationally
Write your return address in the upper left corner
Place the postage stamp in the upper right corner
Use clear, legible handwriting or printed text
Center the recipient address on the front of the envelope
Seal the envelope securely
Verify the correct postage amount before mailing