.B \-volume
.I number
switches implement a digest facility for
-.BR nmh .
+.BR mmh .
Specifying these switches enables and/or overloads the following escapes:
.PP
.RS 5
.SH DEFAULTS
.nf
.RB ` +folder "' defaults to the current folder"
-.RB ` msgs "' defaults to cur"
+.RB ` msgs "' defaults to the current message"
.RB ` \-noannotate '
.fi