A mailman or mail carrier or postman is a person who brings people their postal mail. Normally he works for the post office of the respective country. Of course, there are also women doing this job. They are called mailwomen. For a layman, this occupation is called "letter carriers".
Fictional mailmen are traditionally shown as acting afraid of dogs, even to the point of shock.
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|The Simple English Wiktionary has a definition for: postman.|