    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  relies  on  the
           postdrop(1) command to create a queue file in the maildrop
           directory.

           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 executing the  postqueue(1)
                  command.

           newaliases
                  Initialize the alias database.  If no input file is
                  specified (with the -oA  option,  see  below),  the
                  program  processes  the  file(s) specified with the
                  alias_database  configuration  parameter.   If   no
                  alias  database type is specified, the program uses
                  the type specified with the database_type  configu-
                  ration parameter.  This mode of operation is imple-
                  mented by running the postalias(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 configu-
           ration 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.

           -L label (ignored)
                  The logging label. Use the  syslog_name  configura-
                  tion parameter instead.

           -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.

           -V     Variable Envelope Return Path.  Given  an  envelope
                  sender  address  of the form owner-listname@origin,
                  each recipient user@domain  receives  mail  with  a
                  personalized envelope sender address.

                  By   default,   the  personalized  envelope  sender
                  address is  owner-listname+user=domain@origin.  The
                  default  +  and  = characters are configurable with
                  the default_verp_delimiters  configuration  parame-
                  ter.

           -Vxy   As -V, but uses x and y as the VERP delimiter char-
                  acters, instead of the  characters  specified  with
                  the  default_verp_delimiters  configuration parame-
                  ter.

           -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.  In stand-alone SMTP server mode,  UCE
                  restrictions  and  access  controls are disabled by
                  default. To enable them, run  the  process  as  the
                  mail_owner user.

                  This  mode  of  operation is implemented by running
                  the smtpd(8) daemon.

           -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 executing the postqueue(1) command.

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

           -qRsite
                  Schedule  immediate  delivery  of  all mail that is
                  queued for the named site. This option accepts only
                  site  names  that are eligible for the "fast flush"
                  service,  and  is  implemented  by  executing   the
                  postqueue(1) command.  See flush(8) for more infor-
                  mation 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
                  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.

           default_verp_delimiters
                  The  VERP  delimiter  characters that are used when
                  the -V command line  option  is  specified  without
                  delimiter characters.

           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 list specifies the
                  domains that  Postfix  accepts  in  the  SMTP  ETRN
                  request and in the sendmail -qR command.

           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).

           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.

           verp_delimiter_filter
                  The  characters that Postfix accepts as VERP delim-
                  iter characters.

    SEE ALSO
           pickup(8) mail pickup daemon
           postalias(1) maintain alias database
           postdrop(1) mail posting utility
           postfix(1) mail system control
           postqueue(1) mail queue control
           qmgr(8) queue manager
           smtpd(8) SMTP server
           flush(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

                                                          SENDMAIL(1)