Even when you address an envelope in the correct format, you still run the risk of problems if your handwriting is not legible. It's best to use a non-smear pen with black or blue ink and to print ...

“Addressing an envelope takes some thought to do it properly,” according to Diane Gottsman, a national etiquette expert at the Protocol School of Texas.

How to address an envelope Write the return address in the top left corner. Write the recipient's address slightly centered on the bottom half of the envelope. Place the stamp in the top right corner.

"Ms." is an abbreviation of the honorific “Mistress,” which was the respectable equivalent of “Mister,” to be used regardless of marital status.

“Addressing an envelope takes some thought to do it properly,” according to Diane Gottsman, a national etiquette expert at the Protocol School of Texas.