Is Priority mail safer than first class?
Is Priority mail safer than first class? One of the biggest differences between the two services is that First Class mail doesn't have a default insurance policy like Priority Mail. So, in cases where a package is lost or damaged during delivery via First Class, the sender isn't covered.
How often does first class mail get lost?
So the USPS moves about 146 BILLION PIESES OF MAIL EVERY YEAR, and about 3% of that mail is lost. The loss of mail is usually because the package was missing a proper zip code or the return address was not ledge-able so the letter/package could not be returned to sender.