    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  default_database_type
                  configuration parameter.  This mode of operation is
                  implemented 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:

           -Am (ignored)

           -Ac (ignored)
                  Postfix  sendmail  uses the same configuration file
                  regardless of whether or not a message is  an  ini-
                  tial submission.

           -B body_type
                  The message body MIME type: 7BIT or 8BITMIME.

           -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)
                  To send 8-bit or binary content, use an appropriate
                  MIME  encapsulation  and specify the appropriate -B
                  command-line option.

           -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.  For  compatibility  with  mailx and other
                  mail submission software, a single -v  option  pro-
                  duces no output.

    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.

           default_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.

           daemon_directory
                  Directory with Postfix daemon programs.

           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
           postsuper(1) queue maintenance
           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)