post free

/ˈpoʊstˌfri/
adjective
  1. Sent or delivered without the sender having to pay for postage; postage is paid by the recipient or covered by a special arrangement.
    • Many charities include a post-free envelope for donations.
    • The company sent a post-free catalog to everyone who requested it.
    • You can order the sample post-free by calling this number.
Synonyms
adverb
  1. In a way that involves no postage cost to the sender; with postage paid by the recipient or by arrangement.
    • You can send your application post-free by dropping it at any post office.
    • Return the form post-free using the enclosed envelope.
    • The magazine is delivered post-free to all subscribers.