According to the United States Postal Service, a correctly addressed envelope includes the delivery address, the return address and postage on the same side. It contains the full, correct delivery and return addresses and a stamp or printed postage of the correct amount.Know More
According to the United States Postal Service, the delivery address is placed in the center of the front of the envelope parallel to the longest side. A full delivery address most often includes the recipient's name on the first line, the residence number and street on the second, and the state and ZIP code on the third. Using the complete and correct address helps the envelope reach its destination more quickly. Clearly printing or typing the address with a pen or marker also facilitates the mailing process.
The return address contains the same elements, except the sender's name instead of the recipient's. The return address is placed in the upper-left corner, and the stamp or printed postage is placed in the upper-right corner. An envelope containing only a few papers usually meets the standard weight of 13 ounces or less and only needs one stamp; heavier envelopes need more stamps depending on the weight. The price of postage also depends on the destination of the envelope; farther destinations may require more expensive postage.