splitmail

NAME

       splitmail - Split a large mail message into MIME-compliant
       partial messages

SYNOPSIS

       splitmail  [-d] [-v] [-s splitsize] [-p prefix]  [-i   id-
       suffix] [file-name]

DESCRIPTION

       The splitmail program will take an email message and break
       it up into smaller pieces using the "message/partial" type
       defined by MIME, the proposed Internet standard for multi-
       media mail formats.

       By default it will take the message either  from  standard
       input or the named file, and will produce a set of partial
       message files with names like "/tmp/split.1" for the first
       part, and so on.  The prefix "/tmp/split." can be overrid-
       den using the "-p" option.

       If the -d option is specified, the mail will  actually  be
       delivered.   If  -v is specified, the verbose flag will be
       passed to sendmail.

       The -i option can be used to make splitmail  generate  the
       pieces with similar (but not identical) message-id fields,
       in a format which allows them to be easily correlated with
       one  another and which end with the suffix provided on the
       command line after -i.

       The default chunk size for spliting messages is 250000  at
       most  sites,  though  this  is also a compile-time option.
       This can be overriden with the  -s  switch,  or  with  the
       environment variable SPLITSIZE.

       Messages  smaller  than  the chunk size will not be turned
       into partial messages, but will be  written  to  a  single
       file or delivered as a single message.

ENVIRONMENT

       SPLITSIZE  overrides  the  default  chunk  size.   Setting
       SPLITSIZE to, say, 4000000 will  effectively  ensure  that
       your  messages  are  unlikely ever to be split, but it may
       cause them to be rejected by some mail transport software.

SEE ALSO

       mailto(1), metamail(1)

BUGS

       If  the size of the input is just on the fencepost, and if
       it is coming from  a  file  rather  than  standard  input,
       splitmail  will  sometimes  estimate  the  number of parts
       wrong and will have to write out an extra part.   This  is
       harmless  but  annoying.  It is especially annoying if the
       estimate was 2 but the real number was 1.

COPYRIGHT

       Copyright (c)  1992  Bell  Communications  Research,  Inc.
       (Bellcore)

       Permission to use, copy, modify, and distribute this mate-
       rial for any purpose and without fee  is  hereby  granted,
       provided  that the above copyright notice and this permis-
       sion notice appear in all copies, and  that  the  name  of
       Bellcore  not be used in advertising or publicity pertain-
       ing to this material without the specific,  prior  written
       permission  of  an  authorized representative of Bellcore.
       BELLCORE MAKES NO REPRESENTATIONS ABOUT  THE  ACCURACY  OR
       SUITABILITY  OF THIS MATERIAL FOR ANY PURPOSE.  IT IS PRO-
       VIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED  WARRANTIES.

AUTHOR

       Nathaniel S. Borenstein, Bellcore