Printing Your Mail
------------------

   Normally messages are printed in the foreground.  If this is slow on
your system, you may elect to set `mh-print-background' to non-`nil' to
print in the background.  If you do this, do not delete the message
until it is printed or else the output may be truncated.  The variable
`mh-lpr-command-format' controls how the printing is actually done.
The string can contain one escape, `%s', which is filled with the name
of the folder and the message number and is useful for print job names.
As an example, the default is `"lpr -J '%s'"'.