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)