Letter-carrier

If you dream of a letter-carrier coming with your letters, you will soon receive news of an unwelcome and an unpleasant character. To hear his whistle, denotes the unexpected arrival of a visitor. If he passes without your mail, disappointment and sadness will befall you. If you give him letters to mail, you will suffer injury through envy or jealousy. To converse with a letter-carrier, you will implicate yourself in some scandalous proceedings.

Source: G. Miller, 1901