Does mail man have to buzz

I think there may be a bit of confusion here!

In the United States, the term "mailman" refers to a postal worker who delivers mail and packages to homes and businesses. They typically wear a uniform and carry a mailbag or package delivery bag.

As for the question, "does the mailman have to buzz?"... I think you might be referring to the act of ringing a doorbell or buzzer to announce one's arrival. In most cases, mail carriers (or mailmen) do not need to buzz or ring the doorbell to deliver mail. They usually just leave the mail at the doorstep or in a mailbox.

However, if a mail carrier needs to deliver a package or a special item that requires a signature, they may need to ring the doorbell or buzzer to alert the homeowner or occupant that they have arrived. In these cases, the mail carrier may use a doorbell or buzzer to announce their presence, but this is not a standard requirement for all mail deliveries.

I hope this clears up any confusion!