NAME
          qmail-inject - preprocess and send a mail message

     SYNOPSIS
          qmail-inject [ -nNaAhH ] [ -fsender ] [ recip ... ]

     DESCRIPTION
          qmail-inject reads a mail message from its standard input,
          adds appropriate information to the message header, and
          invokes qmail-queue to send the message to one or more
          recipients.

          See qmail-header(5) for information on how qmail-inject
          rewrites header fields.

          qmail-inject normally exits 0.  It exits 100 if it was
          invoked improperly or if there is a severe syntax error in
          the message.  It exits 111 for temporary errors.

     ENVIRONMENT VARIABLES
          For the convenience of users who do not run qmail-inject
          directly, qmail-inject takes many options through
          environment variables.

          The user name in the From header field is set by QMAILUSER,
          MAILUSER, USER, or LOGNAME, whichever comes first.

          The host name is normally set by the defaulthost control but
          can be overridden with QMAILHOST or MAILHOST.

          The personal name is QMAILNAME, MAILNAME, or NAME.

          The default envelope sender address is the same as the
          default From address, but it can be overridden with
          QMAILSUSER and QMAILSHOST.  It may also be modified by the r
          and m letters described below.  Bounces will be sent to this
          address.

          If QMAILMFTFILE is set, qmail-inject reads a list of mailing
          list addresses, one per line, from that file.  If To+Cc
          includes one of those addresses (without regard to case),
          qmail-inject adds a Mail-Followup-To field with all the
          To+Cc addresses.  qmail-inject does not add Mail-Followup-To
          to a message that already has one.

          The QMAILINJECT environment variable can contain any of the
          following letters:

          c    Use address-comment style for the From field.  Normally
               qmail-inject uses name-address style.

          s    Do not look at any incoming Return-Path field.
               Normally, if Return-Path is supplied, it sets the
               envelope sender address, overriding all environment
               variables.  Return-Path is deleted in any case.

          f    Delete any incoming From field.  Normally, if From is
               supplied, it overrides the usual From field created by
               qmail-inject.

          i    Delete any incoming Message-ID field.  Normally, if
               Message-ID is supplied, it overrides the usual
               Message-ID field created by qmail-inject.

          r    Use a per-recipient VERP.  qmail-inject will append
               each recipient address to the envelope sender of the
               copy going to that recipient.

          m    Use a per-message VERP.  qmail-inject will append the
               current date and process ID to the envelope sender.

     OPTIONS
          -a   Send the message to all addresses given as recip
               arguments; do not use header recipient addresses.

          -h   Send the message to all header recipient addresses.
               For non-forwarded messages, this means the addresses
               listed under To, Cc, Bcc, Apparently-To.  For forwarded
               messages, this means the addresses listed under
               Resent-To, Resent-Cc, Resent-Bcc.  Do not use any recip
               arguments.

          -A   (Default.)  Send the message to all addresses given as
               recip arguments.  If no recip arguments are supplied,
               send the message to all header recipient addresses.

          -H   Send the message to all header recipient addresses, and
               to all addresses given as recip arguments.

          -fsender
               Pass sender to qmail-queue as the envelope sender
               address.  This overrides Return-Path and all
               environment variables.

          -N   (Default.)  Feed the resulting message to qmail-queue.

          -n   Print the message rather than feeding it to qmail-
               queue.

     CONTROL FILES
          defaultdomain
               Default domain name.  Default:  me, if that is
               supplied; otherwise the literal name defaultdomain,
               which is probably not what you want.  qmail-inject adds
               this name to any host name without dots, including
               defaulthost if defaulthost does not have dots.
               (Exception: see plusdomain.)

               The QMAILDEFAULTDOMAIN environment variable overrides
               defaultdomain.

          defaulthost
               Default host name.  Default:  me, if that is supplied;
               otherwise the literal name defaulthost, which is
               probably not what you want.  qmail-inject adds this
               name to any address without a host name.  defaulthost
               need not be the current host's name.  For example, you
               may prefer that outgoing mail show just your domain
               name.

               The QMAILDEFAULTHOST environment variable overrides
               defaulthost.

          idhost
               Host name for Message-IDs.  Default:  me, if that is
               supplied; otherwise the literal name idhost, which is
               certainly not what you want.  idhost need not be the
               current host's name.  For example, you may prefer to
               use fake host names in Message-IDs.  However, idhost
               must be a fully-qualified name within your domain, and
               each host in your domain should use a different idhost.

               The QMAILIDHOST environment variable overrides idhost.

          plusdomain
               Plus domain name.  Default:  me, if that is supplied;
               otherwise the literal name plusdomain, which is
               probably not what you want.  qmail-inject adds this
               name to any host name that ends with a plus sign,
               including defaulthost if defaulthost ends with a plus
               sign.  If a host name does not have dots but ends with
               a plus sign, qmail-inject uses plusdomain, not
               defaultdomain.

               The QMAILPLUSDOMAIN environment variable overrides
               plusdomain.

     SEE ALSO
          addresses(5), qmail-control(5), qmail-header(5), qmail-
          queue(8)