If the `-mbox' switch is given (the default), then the messages are
separated using mbox (uucp) style delimiters. This is the format used
by most mail clients (elm, mailx, etc.).
If the `-mmdf' switch is given, then the messages are separated by mmdf style delimiters. Each message in the file is separated by four CTRL-A's and a newline.
rcvpack will correctly lock and unlock the file to serialize access to the file, when running multiple copies of rcvpack.
In general, its use is obsoleted by the ``file'' action of slocal, although it might still have occasional uses in various shell scripts. ^/etc/nmh/mts.conf~^nmh mts configuration file rcvdist(1), rcvstore(1), rcvtty(1), slocal(1) Only two return codes are meaningful, others should be.