direct mail
US /ˌdɪ.rekt ˈmeɪl/
UK /ˌdɪ.rekt ˈmeɪl/

1.
direct mail, posta diretta
unsolicited advertising or promotional material sent directly to prospective customers by mail
:
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The company uses direct mail campaigns to reach new clients.
L'azienda utilizza campagne di direct mail per raggiungere nuovi clienti.
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Many people consider direct mail to be junk mail.
Molte persone considerano il direct mail come posta indesiderata.