SMTP-SOURCE(1)							SMTP-SOURCE(1)



NAME
       smtp-source - multi-threaded SMTP/LMTP test generator

SYNOPSIS
       smtp-source [options] [inet:]host[:port]

       smtp-source [options] unix:pathname

DESCRIPTION
       smtp-source  connects to the named host and TCP port (default: port 25)
       and sends one or more messages to it, either sequentially or in	paral
       lel. The program speaks either SMTP (default) or LMTP.  Connections can
       be made to UNIX-domain and IPv4 or IPv6 servers.  IPv4 and IPv6 are the
       default.

       Arguments:

       -4     Connect  to the server with IPv4. This option has no effect when
	      Postfix is built without IPv6 support.

       -6     Connect to the server with IPv6. This option  is	not  available
	      when Postfix is built without IPv6 support.

       -c     Display  a running counter that is incremented each time an SMTP
	      DATA command completes.

       -C count
	      When a host sends RESET instead  of  SYN|ACK,  try  count  times
	      before giving up. The default count is 1. Specify a larger count
	      in order to work around a problem with TCP/IP stacks  that  send
	      RESET when the listen queue is full.

       -d     Dont  disconnect after sending a message; send the next message
	      over the same connection.

       -f from
	      Use the specified sender address (default: ).

       -l length
	      Send length bytes  as  message  payload.	The  length  does  not
	      include message headers.

       -L     Speak LMTP rather than SMTP.

       -m message_count
	      Send the specified number of messages (default: 1).

       -M myhostname
	      Use  the specified hostname or [address] in the HELO command and
	      in the default sender and recipient addresses,  instead  of  the
	      machine hostname.

       -N     Prepend  a  non-repeating  sequence  number  to  each  recipient
	      address. This avoids the artificial 100% hit rate in the resolve
	      and rewrite client caches and exercises the trivial-rewrite dae
	      mon, better approximating Postfix  performance  under  real-life
	      work-loads.

       -o     Old mode: dont send HELO, and dont send message headers.

       -r recipient_count
	      Send   the   specified  number  of  recipients  per  transaction
	      (default: 1).  Recipient names are  generated  by  prepending  a
	      number to the recipient address.

       -s session_count
	      Run  the specified number of SMTP sessions in parallel (default:
	      1).

       -S subject
	      Send mail with the named subject line (default: none).

       -t to  Use the specified recipient address (default: ).

       -R interval
	      Wait for a random period of time 0 <= n <= interval between mes
	      sages.  Suspending one thread does  not  affect  other  delivery
	      threads.

       -v     Make the program more verbose, for debugging purposes.

       -w interval
	      Wait  a fixed time between messages.  Suspending one thread does
	      not affect other delivery threads.

       [inet:]host[:port]
	      Connect via TCP to host host, port port.	The  default  port  is
	      smtp.

       unix:pathname
	      Connect to the UNIX-domain socket at pathname.

BUGS
       No SMTP command pipelining support.

SEE ALSO
       smtp-sink(1), SMTP/LMTP message dump

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-SOURCE(1)