-.TH MH-MAIL %manext5% "March 21, 2017" "%nmhversion%"
-.\"
+.TH MH-MAIL %manext5% 2014-01-08 "%nmhversion%"
+.
.\" %nmhwarning%
-.\"
+.
.SH NAME
mh-mail \- message format for nmh message system
.SH DESCRIPTION
.PP
Each header item is called a component and is composed of a keyword or
name, along with associated text. The keyword begins at the left margin,
-may NOT contain spaces or tabs, may not exceed 63 characters (as specified
+may
+.I not
+contain spaces or tabs, may not exceed 63 characters (as specified
by RFC 822), and is terminated by a colon (`:'). Certain components
(as identified by their keywords) must follow rigidly defined formats
in their text portions.