SENDMAIL(1)                                           SENDMAIL(1)


NAME
       sendmail - Postfix to Sendmail compatibility interface

SYNOPSIS
       sendmail [option ...] [recipient ...]

       mailq
       sendmail -bp

       newaliases
       sendmail -I

DESCRIPTION
       The  sendmail  program  implements the Postfix to Sendmail
       compatibility interface.  For the  sake  of  compatibility
       with  existing  applications,  some  Sendmail command-line
       options are recognized but silently ignored.

       By default, sendmail reads a message from  standard  input
       until  EOF  or until it reads a line with only a . charac-
       ter, and arranges for delivery.  sendmail attempts to cre-
       ate a queue file in the maildrop directory. If that direc-
       tory is not world-writable, the message is  piped  through
       the postdrop(1) command, which is expected to execute with
       suitable privileges.

       Specific command aliases are  provided  for  other  common
       modes of operation:

       mailq  List  the  mail  queue.  Each entry shows the queue
              file ID, message size, arrival  time,  sender,  and
              the recipients that still need to be delivered.  If
              mail could not be delivered upon the last  attempt,
              the reason for failure is shown. This mode of oper-
              ation is implemented by connecting to the  showq(8)
              daemon.

       newaliases
              Initialize the alias database. If no alias database
              type is specified, the program uses the type speci-
              fied  in the database_type configuration parameter;
              if no input file is  specified,  the  program  pro-
              cesses    the    file(s)    specified    with   the
              alias_database configuration parameter.  This  mode
              of  operation is implemented by running the postal-
              ias(1) command.

              Note: it may take a minute or so  before  an  alias
              database  update  becomes  visible. Use the postfix
              reload command to eliminate this delay.

       These and other features can be selected by specifying the
       appropriate combination of command-line options. Some fea-
       tures  are  controlled  by  parameters  in   the   main.cf



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SENDMAIL(1)                                           SENDMAIL(1)


       configuration file.

       The following options are recognized:

       -B body_type (ignored)
              The  message  body  MIME  type.  Currently, Postfix
              implements just-send-eight.

       -C config_file (ignored :-)
              The path name of the sendmail.cf file. Postfix con-
              figuration files are kept in /etc/postfix.

       -F full_name
              Set  the  sender  full name. This is used only with
              messages that have no From: message header.

       -G (ignored)
              Gateway (relay) submission, as opposed  to  initial
              user submission.

       -I     Initialize  alias database. See the newaliases com-
              mand above.

       -N dsn (ignored)
              Delivery status  notification  control.  Currently,
              Postfix does not implement DSN.

       -R return_limit (ignored)
              Limit   the   size   of   bounced   mail.  Use  the
              bounce_size_limit configuration parameter  instead.

       -X log_file (ignored)
              Log  mailer  traffic.  Use  the debug_peer_list and
              debug_peer_level configuration parameters  instead.

       -U (ignored)
              Initial user submission.

       -bd    Go  into  daemon  mode.  This  mode of operation is
              implemented by executing the postfix start command.

       -bi    Initialize  alias database. See the newaliases com-
              mand above.

       -bm    Read mail  from  standard  input  and  arrange  for
              delivery.  This is the default mode of operation.

       -bp    List the mail queue. See the mailq command above.

       -bs    Stand-alone  SMTP  server  mode. Read SMTP commands
              from standard input, and write responses  to  stan-
              dard output.  This mode of operation is implemented
              by running the smtpd(8) daemon.




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SENDMAIL(1)                                           SENDMAIL(1)


       -f sender
              Set  the  envelope  sender  address.  This  is  the
              address where delivery problems are sent to, unless
              the message contains an Errors-To: message  header.

       -h hop_count (ignored)
              Hop  count limit. Use the hopcount_limit configura-
              tion parameter instead.

       -i     When reading a message from standard  input,  don't
              treat  a line with only a . character as the end of
              input.

       -m (ignored)
              Backwards compatibility.

       -n (ignored)
              Backwards compatibility.

       -oAalias_database
              Non-default alias  database.  Specify  pathname  or
              type:pathname. See postalias(1) for details.

       -o7 (ignored)

       -o8 (ignored)
              The  message  body  type. Currently, Postfix imple-
              ments just-send-eight.

       -oi    When reading a message from standard  input,  don't
              treat  a line with only a . character as the end of
              input.

       -om (ignored)
              The sender is  never  eliminated  from  alias  etc.
              expansions.

       -o x value (ignored)
              Set  option x to value. Use the equivalent configu-
              ration parameter in main.cf instead.

       -r sender
              Set  the  envelope  sender  address.  This  is  the
              address where delivery problems are sent to, unless
              the message contains an Errors-To: message  header.

       -q     Attempt  to deliver all queued mail. This is imple-
              mented by kicking the qmgr(8) daemon.

       -qinterval (ignored)
              The  interval   between   queue   runs.   Use   the
              queue_run_delay configuration parameter instead.





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SENDMAIL(1)                                           SENDMAIL(1)


       -qRsite
              Schedule  immediate  delivery  of  all mail that is
              queued for the named site. Depending on the  desti-
              nation,  this  uses "fast flush" service, or it has
              the same effect as sendmail  -q.   This  is  imple-
              mented by connecting to the local SMTP server.  See
              smtpd(8)  for  more  information  about  the  "fast
              flush" service.

       -qSsite
              This  command  is  not  implemented. Use the slower
              sendmail -q command instead.

       -t     Extract  recipients  from  message  headers.   This
              requires  that  no  recipients  be specified on the
              command line.

       -v     Enable verbose logging for debugging purposes. Mul-
              tiple  -v  options  make  the software increasingly
              verbose.

SECURITY
       By design, this program is not  set-user  (or  group)  id.
       However,  it  must  handle  data  from  untrusted users or
       untrusted machines.  Thus, the usual precautions  need  to
       be taken against malicious inputs.

DIAGNOSTICS
       Problems  are  logged  to  syslogd(8)  and to the standard
       error stream.

ENVIRONMENT
       MAIL_CONFIG
              Directory with Postfix configuration files.

       MAIL_VERBOSE
              Enable verbose logging for debugging purposes.

       MAIL_DEBUG
              Enable debugging with an external command, as spec-
              ified   with   the  debugger_command  configuration
              parameter.

FILES
       /var/spool/postfix, mail queue
       /etc/postfix, configuration files

CONFIGURATION PARAMETERS
       See the Postfix main.cf file for syntax  details  and  for
       default  values.  Use  the  postfix reload command after a
       configuration change.

       alias_database
              Default  alias  database(s)  for  newaliases.   The



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SENDMAIL(1)                                           SENDMAIL(1)


              default  value  for  this  parameter is system-spe-
              cific.

       bounce_size_limit
              The amount of original message context that is sent
              along with a non-delivery notification.

       database_type
              Default alias etc. database type. On many UNIX sys-
              tems the default type is either dbm or hash.

       debugger_command
              Command that is executed after a Postfix daemon has
              initialized.

       debug_peer_level
              Increment  in  verbose  logging level when a remote
              host  matches  a  pattern  in  the  debug_peer_list
              parameter.

       debug_peer_list
              List  of  domain or network patterns. When a remote
              host matches a pattern, increase the  verbose  log-
              ging   level   by   the  amount  specified  in  the
              debug_peer_level parameter.

       fast_flush_domains
              List of domains that will receive "fast flush" ser-
              vice  (default:  all  domains  that  this system is
              willing to relay mail to).  This  greatly  improves
              the  performance  of  the SMTP ETRN request, and of
              the sendmail -qR command. For domains  not  in  the
              list, Postfix simply attempts to deliver all queued
              mail.

       fork_attempts
              Number of attempts to fork() a process before  giv-
              ing up.

       fork_delay
              Delay   in   seconds   between   successive  fork()
              attempts.

       hopcount_limit
              Limit the number of Received: message headers.

       mail_owner
              The owner of the mail queue  and  of  most  Postfix
              processes.

       command_directory
              Directory  with  Postfix support commands (default:
              $program_directory).




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SENDMAIL(1)                                           SENDMAIL(1)


       daemon_directory
              Directory with Postfix  daemon  programs  (default:
              $program_directory).

       queue_directory
              Top-level  directory  of the Postfix queue. This is
              also the root directory of Postfix daemons that run
              chrooted.

       queue_run_delay
              The  time  between successive scans of the deferred
              queue.

SEE ALSO
       pickup(8) mail pickup daemon
       postalias(1) maintain alias database
       postdrop(1) privileged posting agent
       postfix(1) mail system control
       postkick(1) kick a Postfix daemon
       qmgr(8) queue manager
       showq(8) list mail queue
       smtpd(8) SMTP server
       flushd(8) fast flush service
       syslogd(8) system logging

LICENSE
       The Secure Mailer license must be  distributed  with  this
       software.

AUTHOR(S)
       Wietse Venema
       IBM T.J. Watson Research
       P.O. Box 704
       Yorktown Heights, NY 10598, USA























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