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
       and  arranges for delivery.  sendmail attempts to create a
       queue file in the maildrop directory. If that directory is
       not world-writable, the message is piped through the post-
       drop(1) command, which is expected to execute  with  suit-
       able 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 configu-
       ration file.



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SENDMAIL(1)                                           SENDMAIL(1)


       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.

       -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.

       -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.

       -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.




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SENDMAIL(1)                                           SENDMAIL(1)


       -i (ignored)
              Lines beginning with "." get special treatment only
              with -bs.

       -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.

       -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     Flush the mail queue. This is implemented by  kick-
              ing the qmgr(8) daemon.

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




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SENDMAIL(1)                                           SENDMAIL(1)


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.





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SENDMAIL(1)                                           SENDMAIL(1)


       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.

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
       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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