Postfix manual - smtp-sink(1)

    SMTP-SINK(1)                                         SMTP-SINK(1)

    NAME
           smtp-sink - multi-threaded SMTP/LMTP test server

    SYNOPSIS
           smtp-sink [options] [inet:][host]:port backlog

           smtp-sink [options] unix:pathname backlog

    DESCRIPTION
           smtp-sink listens on the named host (or address) and port.
           It takes SMTP messages from the network  and  throws  them
           away.   The  purpose is to measure client performance, not
           protocol compliance.

           Connections can be accepted on  IPV4  endpoints  or  UNIX-
           domain sockets.  IPV4 is the default.  This program is the
           complement of the smtp-source(1) program.

           Arguments:

           -a     Do not announce SASL authentication support.

           -c     Display a running counter that is updated  whenever
                  an SMTP QUIT command is executed.

           -C     Disable XCLIENT support.

           -e     Do not announce ESMTP support.

           -f command,command,...
                  Reject  the  specified  commands  with a hard (5xx)
                  error code.

           -F     Disable XFORWARD support.

           -h     Use hostname in the  SMTP  greeting,  in  the  HELO
                  response,  and  in  the  EHLO response. The default
                  hostname is "smtp-sink".

           -L     Enable LMTP instead of SMTP.

           -n count
                  Terminate after count sessions. This is for testing
                  purposes.

           -p     Do  not announce support for ESMTP command pipelin-
                  ing.

           -P     Change the server greeting so that  it  appears  to
                  come through a CISCO PIX system. Implies -e.

           -q command,command,...
                  Disconnect  (without  replying) after receiving one
                  of the specified commands.

           -r command,command,...
                  Reject the specified commands  with  a  soft  (4xx)
                  error code.

           -s command,command,...
                  Log  the  named  commands  to syslogd.  Examples of
                  commands that can be logged are HELO,  EHLO,  LHLO,
                  MAIL,  RCPT,  VRFY,  RSET, NOOP, and QUIT. Separate
                  command names by white space  or  commas,  and  use
                  quotes  to protect white space from the shell. Com-
                  mand names are case-insensitive.

           -v     Show the SMTP conversations.

           -w delay
                  Wait delay seconds before responding to a DATA com-
                  mand.

           -8     Do not announce 8BITMIME support.

           [inet:][host]:port
                  Listen  on  network  interface  host  (default: any
                  interface) TCP port port. Both host and port may be
                  specified in numeric or symbolic form.

           unix:pathname
                  Listen on the UNIX-domain socket at pathname.

           backlog
                  The  maximum  length  the  queue of pending connec-
                  tions, as defined by the listen(2) call.

    SEE ALSO
           smtp-source(1), SMTP/LMTP message generator

    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

                                                         SMTP-SINK(1)