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<title> Postfix manual - smtp-source(1) </title>
</head> <body> <pre>
SMTP-SOURCE(1) SMTP-SOURCE(1)
<b>NAME</b>
smtp-source - parallelized SMTP/LMTP test generator
<b>SYNOPSIS</b>
<b>smtp-source</b> [<i>options</i>] [<b>inet:</b>]<i>host</i>[:<i>port</i>]
<b>smtp-source</b> [<i>options</i>] <b>unix:</b><i>pathname</i>
<b>DESCRIPTION</b>
<b>smtp-source</b> connects to the named <i>host</i> and TCP <i>port</i> (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.
Note: this is an unsupported test program. No attempt is made to main-
tain compatibility between successive versions.
Arguments:
<b>-4</b> Connect to the server with IPv4. This option has no effect when
Postfix is built without IPv6 support.
<b>-6</b> Connect to the server with IPv6. This option is not available
when Postfix is built without IPv6 support.
<b>-A</b> Don't abort when the server sends something other than the
expected positive reply code.
<b>-c</b> Display a running counter that is incremented each time an SMTP
DATA command completes.
<b>-C</b> <i>count</i>
When a host sends RESET instead of SYN|ACK, try <i>count</i> 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.
<b>-d</b> Don't disconnect after sending a message; send the next message
over the same connection.
<b>-f</b> <i>from</i>
Use the specified sender address (default: <foo@my-hostname>).
<b>-F</b> <i>file</i>
Send the pre-formatted message header and body in the specified
<i>file</i>, while prepending '.' before lines that begin with '.', and
while appending CRLF after each line.
<b>-l</b> <i>length</i>
Send <i>length</i> bytes as message payload. The length does not
include message headers.
<b>-L</b> Speak LMTP rather than SMTP.
<b>-m</b> <i>message</i><b>_</b><i>count</i>
Send the specified number of messages (default: 1).
<b>-M</b> <i>my-hostname</i>
Use the specified hostname or [address] in the HELO command and
in the default sender and recipient addresses, instead of the
machine hostname.
<b>-N</b> Generate each recipient address by appending a number (a
per-process recipient counter) to the recipient address local-
part specified with the <b>-t</b> option.
Note: to use the number as an address extension, specify an
explicit address delimiter at the end of the recipient local-
part, as in "<b>-t localpart+@domain</b>" or "<b>-t localpart+</b>", where "<b>+</b>"
is a Postfix recipient address delimiter.
Benefits:
<b>o</b> A non-constant recipient address avoids an unrealistic
100% cache hit rate in clients of the Postfix trivial-re-
write service, better approximating performance under
real-life work-loads.
<b>o</b> A fixed recipient address local-part with a non-constant
address extension avoids the need to configure a large
number of valid recipient addresses in the receiving
Postfix server.
<b>-o</b> Old mode: don't send HELO, and don't send message headers.
<b>-r</b> <i>recipient</i><b>_</b><i>count</i>
Send the specified number of recipients per transaction
(default: 1), and generate recipient addresses as described
under the <b>-N</b> option.
<b>-R</b> <i>interval</i>
Wait a random time (0 <= n <= <i>interval</i>) between messages. Sus-
pending one thread does not affect other delivery threads.
<b>-s</b> <i>session</i><b>_</b><i>count</i>
Run the specified number of SMTP sessions in parallel (default:
1).
<b>-S</b> <i>subject</i>
Send mail with the named subject line (default: none).
<b>-t</b> <i>to</i> Use the specified recipient address (default: <foo@my-host-
name>).
<b>-T</b> <i>windowsize</i>
Override the default TCP window size. To work around broken TCP
window scaling implementations, specify a value > 0 and < 65536.
<b>-v</b> Make the program more verbose, for debugging purposes.
<b>-w</b> <i>interval</i>
Wait a fixed time between messages. Suspending one thread does
not affect other delivery threads.
[<b>inet:</b>]<i>host</i>[:<i>port</i>]
Connect via TCP to host <i>host</i>, port <i>port</i>. The default port is
<b>smtp</b>.
<b>unix:</b><i>pathname</i>
Connect to the UNIX-domain socket at <i>pathname</i>.
<b>BUGS</b>
No SMTP command pipelining support.
<b>SEE ALSO</b>
<a href="smtp-sink.1.html">smtp-sink(1)</a>, SMTP/LMTP message dump
<b>LICENSE</b>
The Secure Mailer license must be distributed with this software.
<b>AUTHOR(S)</b>
Wietse Venema
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA
Wietse Venema
Google, Inc.
111 8th Avenue
New York, NY 10011, USA
SMTP-SOURCE(1)
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