+2014-02-23 Glenn Morris <rgm@gnu.org>
+
+ * rmail.texi (Rmail Inbox): Mention rmail-mbox-format.
+
2014-02-20 Glenn Morris <rgm@gnu.org>
* search.texi (Special Isearch): Mention invisible text.
@item
The inbox file format varies between operating systems and according to
the other mail software in use. Only one part of Rmail needs to know
-about the alternatives, and it need only understand how to convert all
+about the alternatives, and it need only understand how to convert allx
of them to Rmail's own format.
@item
@end enumerate
@c FIXME remove this in Emacs 25; won't be relevant any more.
+@cindex Babyl files
+@cindex mbox files
Rmail was originally written to use the Babyl format as its internal
format. Since then, we have recognized that the usual inbox format
(@samp{mbox}) on Unix and GNU systems is adequate for the job, and so
since Emacs 23 Rmail uses that as its internal format. The Rmail file
is still separate from the inbox file, even though their format is the
same.
+@c But this bit should stay in some form.
+@vindex rmail-mbox-format
+(In fact, there are a few slightly different mbox formats.
+The differences are not very important, but you can set the variable
+@code{rmail-mbox-format} to tell Rmail which form your system uses.
+See that variable's documentation for more details.)
@vindex rmail-preserve-inbox
When getting new mail, Rmail first copies the new mail from the