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           Normally the qmail-local program delivers each incoming message to your
           system mailbox, homedir/Mailbox, where homedir is your home  directory.
           It can instead write the mail to a different file or directory, forward
           it to another address, distribute it to a mailing list, or even execute
           programs, all under your control.


           To  change  qmail-local's  behavior,  set up a .qmail file in your home
           .qmail contains one or more lines.  Each line is  a  delivery  instruc-
           tion.   qmail-local  follows  each instruction in turn.  There are five
           types of delivery instructions: (1) comment; (2) program; (3)  forward;
           (4) mbox; (5) maildir.
           (1)  A comment line begins with a number sign:
                     # this is a comment
                qmail-local ignores the line.
           (2)  A program line begins with a vertical bar:
                     |preline /usr/ucb/vacation djb
                qmail-local  takes  the rest of the line as a command to supply to
                sh.  See qmail-command(8) for further information.
           (3)  A forward line begins with an ampersand:
                qmail-local takes the rest of the line as a mail address; it  uses
                qmail-queue  to  forward the message to that address.  The address
                must contain a fully qualified domain name; it  must  not  contain
                extra spaces, angle brackets, or comments:
                     # the following examples are WRONG
                     & (New Address)
                If  the  address begins with a letter or number, you may leave out
                the ampersand:
                Note that qmail-local omits its new Return-Path line when forward-
                ing messages.
                If  qmail-local  is able to lock the file, but has trouble writing
                to it (because, for example, the disk is full), it  will  truncate
                the  file back to its original length.  However, it cannot prevent
                mailbox corruption if the system crashes during delivery.
           (5)  A maildir line begins with a slash or dot, and ends with a slash:
                qmail-local takes the entire line as the name of  a  directory  in
                maildir  format.   It reliably stores the incoming message in that
                directory.  See maildir(5) for more details.
           If .qmail has the execute bit set, it  must  not  contain  any  program
           lines,  mbox  lines,  or  maildir  lines.  If qmail-local sees any such
           lines, it will stop and indicate a temporary failure.
           If .qmail is completely empty (0 bytes long), or does not exist, qmail-
           local  follows  the  defaultdelivery  instructions  set  by your system
           administrator; normally defaultdelivery is  ./Mailbox,  so  qmail-local
           appends the mail message to Mailbox in mbox format.
           .qmail  may  contain extra spaces and tabs at the end of a line.  Blank
           lines are allowed, but not for the first line of .qmail.
           If .qmail is world-writable, qmail-local stops and indicates  a  tempo-
           rary failure.


           Incoming messages can arrive at any moment.  If you want to safely edit
           your .qmail file, first set the sticky bit on your home directory:
                chmod +t $HOME
           qmail-local will temporarily defer delivery of any message  to  you  if
           your  home  directory  is  sticky (or group-writable or other-writable,
           which should never happen).  Make sure to
                chmod -t $HOME
           when you are done!  It's a good idea to test your new  .qmail  file  as
                qmail-local -n $USER ~ $USER '' '' '' '' ./Mailbox


           In  the qmail system, you control all local addresses of the form user-
           anything, as well as the  address  user  itself,  where  user  is  your
           account  name.   Delivery  to  user-anything  is controlled by the file
           homedir/.qmail-anything.  (These rules may be  changed  by  the  system
           administrator; see qmail-users(5).)
           .qmail-foo-bar, then .qmail-foo-default,  and  finally  .qmail-default.
           If  none  of these exist, qmail-local will bounce the message.  (Excep-
           tion: for the basic user  address,  qmail-local  treats  a  nonexistent
           .qmail the same as an empty .qmail.)
           WARNING: For security, qmail-local replaces any dots in ext with colons
           before checking .qmail-ext.  For convenience, qmail-local converts  any
           uppercase letters in ext to lowercase.
           When  qmail-local  forwards  a  message as instructed in .qmail-ext (or
           .qmail-default), it checks whether .qmail-ext-owner exists.  If so,  it
           uses  local-owner@domain  as the envelope sender for the forwarded mes-
           sage.  Otherwise it retains the envelope sender of  the  original  mes-
           sage.   Exception:  qmail-local  always  retains  the original envelope
           sender if it is the empty address or #@[], i.e., if this  is  a  bounce
           qmail-local  also  supports  variable envelope return paths (VERPs): if
           .qmail-ext-owner  and  .qmail-ext-owner-default  both  exist,  it  uses
           local-owner-@domain-@[]  as  the  envelope  sender.   This will cause a
           recipient   recip@reciphost   to   see   an    envelope    sender    of


           If  a  delivery  instruction  fails,  qmail-local stops immediately and
           reports  failure.   qmail-local  handles  forwarding  after  all  other
           instructions, so any error in another type of delivery will prevent all
           If a program returns exit code 99, qmail-local ignores  all  succeeding
           lines in .qmail, but it still pays attention to previous forward lines.
           To set up independent instructions,  where  a  temporary  or  permanent
           failure  in  one  instruction  does  not  affect  the others, move each
           instruction into a separate .qmail-ext  file,  and  set  up  a  central
           .qmail  file that forwards to all of the .qmail-exts.  Note that qmail-
           local can handle any number of forward lines simultaneously.


           envelopes(5),  maildir(5),  mbox(5),  qmail-users(5),   qmail-local(8),
           qmail-command(8), qmail-queue(8), qmail-lspawn(8)

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