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NNAAMMEE
       preline - prepend lines to message

SSYYNNOOPPSSIISS
       in ..qqmmaaiill_e_x_t: || pprreelliinnee _c_o_m_m_a_n_d

DDEESSCCRRIIPPTTIIOONN
       pprreelliinnee  feeds each incoming mail message through _c_o_m_m_a_n_d.
       At the top of each message it inserts a  UUCP-style  FFrroomm__
       line, a RReettuurrnn--PPaatthh line, and a DDeelliivveerreedd--TToo line.

       pprreelliinnee  is useful for pprrooccmmaaiill and ELM's ffiilltteerr, which do
       not understand the qqmmaaiill--ccoommmmaanndd environment variables.

OOPPTTIIOONNSS
       --dd     Do not include the DDeelliivveerreedd--TToo  line.  You  should
              use  this option when the recipient of the incoming
              mail message is actually under remote control,  but
              was  sent  here  through ccoonnttrrooll//vviirrttuuaallddoommaaiinnss for
              manual routing.

       --ff     Do not include the FFrroomm__ line. You should use  this
              option  except for _c_o_m_m_a_n_ds that create _m_b_o_x files.

       --rr     Do not include the RReettuurrnn--PPaatthh line.

SSEEEE AALLSSOO
       mbox(5), qmail-command(8)



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