.\" %nmhwarning%
.
.SH NAME
-mh-folders \- specification of storage format used by nmh message system
+mh-folders \- storage format used by nmh message system
.SH DESCRIPTION
.B nmh
stores messages in the files and directories of the host filesystem
The file name is a positive integer. Other files containing metadata or
arbitrary names can exist in a folder; while the preference is that non-message
files begin with \*(lq.\*(rq, all files that are not positive integers
-.B must
+.I must
be ignored by an
.BR MH \-compatible
implementation. However, implementations are free to indicate to the user
.B mhpath
.IR new ).
New messages are
-.B only
+.I only
permitted to be added to a folder at the end of the message number range.
.PP
To add a new message to a folder, the recommended sequence is:
profile entry.
.PP
A second, possibly different, locking method is used by
-.BR inc (1)
+.IR inc (1)
when accessing the user's mail spool file or by
.B nmh
programs that open any mbox file. This locking method can be overridden