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SMTPC(1)                         smtpc 0.1a.5                         SMTPC(1)

NAME
       smtpc - SMTP / LMTP client

SYNOPSIS
       smtpc --esmtp host:port -f envelope@sen.der [ options... ] [ -- ]
       recipient@add.ress ...

       smtpc --lmtp host:port -f envelope@sen.der [ options... ] [ -- ]
       recipient@add.ress ...

       smtpc --lmtp path -f envelope@sen.der [ options... ] [ -- ]
       recipient@add.ress ...

DESCRIPTION
       smtpc is an email client.  It reads a message from standard input and
       submits it to email server through socket.

   Options
       Any options not listed here are silently ignored.

       --dump Show dialog in the session.

       --esmtp host[:port]
              Uses TCP socket and ESMTP protocol to submit message.  Either
              this option or --lmtp option is required.

              If host is the IPv6 address, it must be enclosed in [...] to
              avoid confusion with colon separating host and port, e.g.
              "[::1]", "[::1]:587".  If port is omitted, "25" is used.

       -f envelope@sen.der, -fenvelope@sen.der
              Specifys envelope sender.  This option is required.

              To specify "null envelope sender", use a separate empty argument
              or "<>".

       --iam host.name
              Specifys host name or IP address literal used in EHLO or LHLO
              request.  Default is "localhost".

       --lmtp host[:port], --lmtp path
              Uses TCP or Unix domain socket and LMTP protocol to submit
              message.  Either this option or --esmtp option is required.

              If port is omitted, "24" is used.  path must be full path to
              socket file.

       -N dsn, -Ndsn
              Controls delivery status notification.  dsn may be single word
              "NEVER" or one or more of words "SUCCESS", "FAILURE" and "DELAY"
              separated by comma.

              If this option is not given, delivery status notification will
              be controlled by server.

       --smtputf8
              Enables support for SMTPUTF8 extension.  smtpc detects valid
              UTF-8 sequence in envelope and message header, then requests
              this extension as neccessity.

       -V envid, -Venvid
              Specifys envelope ID.

       --verbose
              Output the last response from the server to standard output.

       --     Terminates options.  Remainder of command line arguments are
              considered to be recipient addresses, even if any of them begin
              with "-".

       recipent@add.ress ...
              Recipients to whom the message would be delivered.  At least one
              recipient is required.

   Exit status
       0      Message was successfully submitted.

       253    Message was rejected by server.

       254    The server returns malformed or illegal response.

       255    Network error occurred.

   SMTP extensions
       smtpc supports following extensions.

       8-bit MIME Transport (RFC 6152)
              smtpc requests this extension if message contains octets with
              high bit.

       Delivery Status Notification (RFC 3461)
              smtpc issues ORCPT parameters.  See also -N and -V options.

       Internationalized Email (RFC 6531)
              Experimentally supported.  See --smtputf8 option.

       Message Size Declaration (RFC 1870)
              Estimated size of the message is informed to the server.

LIMITATIONS
       smtpc provides the feature of SMTP / LMTP client submitting messages to
       particular server.  It will never provide extensive features such as
       message queuing, retry after temporary failure, routing using MX DNS
       record and so on.  Once the server rejects delivery, smtpc exits and
       message is discarded.

KNOWN BUGS
       * If NUL octets (\0) are included in messages, they are transmitted to
         the server.

SEE ALSO
       sendmail(1)

HISTORY
       smtpc was initially written for Sympa project by IKEDA Soji
       <ikeda@conversion.co.jp>.

0.1a.5                                                                SMTPC(1)