According to the Department of State, you can renew by mail using Form DS-82 if your most recent passport:
- Is submitted with your application
- Is undamaged (other than normal “wear and tear”)
- Was issued when you were age 16 or older
- Was issued within the last 15 years
- Was issued in your current name (or you can document your name change with an original or certified copy of your marriage certificate, divorce decree, or court order)