messages, see
.BR inc (1)).
.PP
+When displaying multiple messages,
+.B mhshow
+prepends each of them with a `>>> Message nnn' header,
+and separates the messages with two lines of space.
+This is similar to the way
+.B mhl
+acts on multiple files.
+.PP
A part specification consists of a series of numbers separated by dots.
For example, in a multipart content containing three parts, these
would be named as 1, 2, and 3, respectively. If part 2 was also a