USPS First Class into mailboxes outside?
Hello, I heard that you are allowed to put a First Class package into the USPS mail boxes that are located outside. Is this true? If so, is it safe to do this? As long as it's First Class and it fits inside, it's fine? There must be a better way than going all the way to the post office just to drop off the packages... Since most of the things I had were first class, I doubt my mailman would take it.
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