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bhm(8)				    Postal				bhm(8)

NAME
       bhm - program to	send SMTP mail to /dev/null

SYNOPSIS
       bhm  [-m	 maximum-message-size] [-t threads] [-b	bind-address] [-p lis-
       ten-port]  [  -s	 ]   [-a]   [-[z|Z]   debug-file]   [-r	  reverse-dns]
       user-list-filename

DESCRIPTION
       This manual page	documents briefly the bhm, program.

       It is designed to test the performance of SMTP relay servers by receiv-
       ing mail	to /dev/null at	random speeds.

       The  user-list-filename	is the name of a file which contains a list of
       valid user's email addresses.  The file may have	three fields separated
       by spaces, the email address, the password (used	for rabid) and an  op-
       tional  third field to specify what is to be done with the mail.	 A 'd'
       character means that it is to be	deferred (SMTP 45x), a 'r' means  that
       it  is to be rejected (SMTP 55x), a 'b' means that it is	to be accepted
       and bounced, and	a 'g' means that it is to be grey-listed.

       The reverse-dns file is in the same format as /etc/hosts	and gives  the
       value that will be used in the 220 message.  Otherwise it will be bhm

       The  maximum-message-size  indicates the	size in	Kilobytes that will be
       the maximum size	of a message that will be accepted.   The  default  is
       10240k.

       The -s parameter	enables	SSL.

       The  listen-port	parameter specifies the	TCP port to listen on (default
       25).

       The bind-address	parameter specifies the	IP address to bind to (default
       is INADDR_ANY - accept connections on all local addresses).

       The threads parameter is	the number of threads that may be  created  to
       receive mail.  Note that	your BHM machine may have hardware and OS lim-
       its that	determine how many connections it may receive.

       The -a command turns on all logging.  All message data received will be
       logged.	 This  will  make it slow and it may not be able to saturate a
       fast Ethernet link...

       The -z switch allows you	to specify a debugging file base.   From  this
       base  one  file	is  created for	each thread (with a ':'	and the	thread
       number appended), each file is used to log all  IO  performed  by  that
       thread for debugging purposes.

       The  -Z switch is the same but creates a	separate file for each connec-
       tion as well with an attitional ':' appended followed by	the connection
       number.

RETURN CODES
       0      No Error

       1      Bad Parameters

       2      System Error, lack of memory or some other resource

AUTHOR
       This program, it's manual page, and the Debian package were written  by
       Russell Coker <russell@coker.com.au>.

AVAILABILITY
       The source is available from http://doc.coker.com.au/projects/postal/ .

       See  http://etbe.coker.com.au/category/benchmark	 for  further informa-
       tion.

SEE ALSO
       postal(8),postal-list(8),rabid(8)

russell@coker.com.au		     0.70				bhm(8)

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