NAME

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

SYNOPSIS

       bhm  [-m  maximum-message-size]  [-t  threads]  [-p  listen-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 receiving 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
       optional 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  threads  parameter is the number of threads that may be created to receive mail.  Note that your BHM
       machine may have hardware and OS limits 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 connection 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 information.

SEE ALSO

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

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