smtp-source - parallelized SMTP/LMTP test generator
smtp-source [options]
[inet:]host[:port]
smtp-source [options]
unix:pathname
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 parallel. 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
maintain compatibility between successive versions.
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.
- -A
- Don't abort when the server sends something other than the expected
positive reply code.
- -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
- Don't disconnect after sending a message; send the next message over the
same connection.
- -f from
- Use the specified sender address (default: <foo@myhostname>).
- -F file
- Send the pre-formatted message header and body in the specified
file, while prepending '.' before lines that begin with '.', and
while appending CRLF after each line.
- -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 daemon, better approximating
Postfix performance under real-life work-loads.
- -o
- Old mode: don't send HELO, and don't 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.
- -R interval
- Wait for a random period of time 0 <= n <= interval between
messages. Suspending one thread does not affect other delivery
threads.
- -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:
<foo@myhostname>).
- -T windowsize
- Override the default TCP window size. To work around broken TCP window
scaling implementations, specify a value > 0 and < 65536.
- -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.
No SMTP command pipelining support.
The Secure Mailer license must be distributed with this
software.
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