Guidance from the Centers for Disease Control and Prevention (CDC) regarding the handling of mail, excerpted from the CDC website Coronavirus FAQ page, using the search word– mail.<https://www.cdc.gov/coronavirus/2019-ncov/faq.html>
There is still a lot that is unknown about COVID-19 and how it spreads. Coronaviruses are thought to be spread most often by respiratory droplets. Although the virus can survive for a short period on some surfaces, it is unlikely to be spread from domestic or international mail, products or packaging. However, it may be possible that people can get COVID-19 by touching a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes, but this is not thought to be the main way the virus spreads.
CDC recommendation: After collecting mail from a post office or home mailbox, wash your hands with soap and water for at least 20 seconds or use a hand sanitizer with at least 60% alcohol.