sendmail(8) - phpMan

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SSMTP(8)                                                              SSMTP(8)

       ssmtp, sendmail - send a message using smtp

       ssmtp [ flags ] [ address ... ]
       /usr/lib/sendmail [ flags ] [ address ... ]

       ssmtp  is a send-only sendmail emulator for machines which normally pick their mail
       up from a centralized mailhub (via pop, imap, nfs mounts or other means).  It  pro-
       vides the functionality required for humans and programs to send mail via the stan-
       dard or /usr/bin/mail user agents.

       It accepts a mail stream on standard input with recipients specified on the command
       line and synchronously forwards the message to the mail transfer agent of a mailhub
       for the mailhub MTA to process. Failed messages are placed in  dead.letter  in  the
       sender's home directory.

       Config  files  allow  one to specify the address to receive mail from root, daemon,
       etc.; a default mailhub; a default domain to be used in From: lines; per-user From:
       addresses and mailhub names; and aliases in the traditional format used by sendmail
       for the /etc/aliases file.

       It does not attempt to provide all the functionality of sendmail:  it  is  intended
       for use where other programs are the primary means of at last mail delivery.  It is
       usefull with pop/imap, or to simulate the Sun shared mail spool option for  non-Sun
       machines, for machines whose sendmails are too difficult (or various) to configure,
       for machines with known disfeatures in their sendmails or for ones where there  are
       ''mysterious problems''.

       It does not honor .forwards, which have to be done on the recieving host.  It espe-
       cially does not deliver to pipelines.

       Most sendmail  options  are  irrelevent  to  sSMTP.  Those  marked  ''ignored''  or
       ''default''  have  no  effect  on  mail transfer.  Those marked ''unsupported'' are
       fatal errors.  Those marked ''simulated'' are not errors, but the result is for the
       program to exit with an informative message. A sort of fatal non-error.

       -4     Forces ssmtp to use IPv4 addresses only.

       -6     Forces ssmtp to use IPv6 addresses only.

              Specifies username for SMTP authentication.

              Specifies password for SMTP authentication.

              Specifies mechanism for SMTP authentication. (Only LOGIN and CRAM-MD5)

       -ba    (unsupported)  ARPANET  mode.  All input lines must end with a LINEFEED, and
              all messages will be generated with a CR-LF at the end. Also, the  ''From:''
              and ''Sender:'' fields are examined for the name of the sender.

       -bd    (unsupported) Run as a daemon.

       -bi    (ignored) Initialise the alias database.

       -bm    (default) Deliver mail in the usual way.

       -bp    (simulated) Print a summary of the mail queue.

       -bs    (unsupported) Read SMTP commands from stdin.

       -bt    (unsupported) Run in address test mode.

       -bv    (unsupported) Verify names only.

       -bz    (unsupported) Create the configuration freeze file.

       -Cfile Use alternate configuration file.

       -dX    Set debugging value to X.

       -E     (ignored) Don't trust userid of sender.

              Set the full name of the sender.

       -fname Sets  the name of the ''from'' person. This option is valid only if no From:
              line is specified within the header of the email.

       -h     (ignored) Set the hop count to N.

       -m     (ignored) Ignore originator in alias.

       -Mid   (ignored) Attempt to deliver the queued message with message-id id.

       -N dsn (ignored) Set delivery status notification conditions to dsn.

       -n     (default) Do not do aliasing.

              (ignored) Use alternate alias file.

       -oc    (ignored) Delay ''expensive'' connections.

       -od    (ignored) Set the delivery mode to  interactive/synchronous,  background  or
              queue (Always interactive).

       -oD    (ignored) Run newaliases if required.

       -oe    (ignored)  Set  error  processing  to  mail,  write,  print or quit. (Always

              (ignored) The mode to use when creating temporary files.

       -of    (ignored) Save UNIX-system-style ''From'' lines at the front of messages.

       -ogN   (ignored) Set group ID to use when calling mailers.

              (ignored) Set SMTP help file.

       -oi    (default) Do not take dots on a line by themselves as a message  terminator.

       -oLn   (ignored) The log level.

       -om    (default) Send to ''me'' (the sender) also if in an alias.

       -oo    (unsupported) If set, this message may have old style headers.

              (ignored) Select the directory in which to queue messages.

              (ignored) The timeout on reads.

              (ignored) Save statistics in the named file.

       -os    (ignored) Always instantiate the queue.

              (ignored) Set timeout on messages.

              (ignored) Set the name of the time zone.

       -ouN   (ignored) Set the default user id for mailers.

              (simulated) Process the queue.

       -rname Same as -f.

              (ignored) Process queue for recipient.

       -R return
              (ignored)  Set  the  amount  of  the  message  to be returned if the message

       -t     Read  message, searching for recipients. ''To:'', 'Cc:'', and ''Bcc:'' lines
              will be scanned for people to send to. Any addresses  in  the  argument list
              will be suppressed (not supported).

       -v     Go into verbose mode.

       -V     Say version and quit.

       A reverse alias gives the From: address placed on a user's  outgoing  messages  and
       (optionally) the mailhub these messages will be sent through. Example:

          root:jdoe AT

       Messages  root  sends  will  be  identified  as  from jdoe AT and sent through

        /etc/ssmtp/ssmtp.conf - configuration file
        /etc/ssmtp/revaliases - reverse aliases file
        /etc/aliases - aliases file

       RFC821, RFC822, ssmtp.conf(5).

       Matt Ryan (mryan AT Hugo Haas (hugo AT Christoph Lameter  (clame-
       ter AT Dave Collier-Brown (davecb AT

       sSMTP does not support exception lists to the -t option (never seen it used).

       sSMTP will fail if the mailhub is unreachable.

                         Last change: 4 February 2005                 SSMTP(8)

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