-your default maildrop: see the \*(lqMailDrop\*(rq profile entry.
-.RE
-.PP
-.B $HOME
-.RS 5
-This variable tells all
-.B nmh
-programs your home directory
-.RE
-.PP
-.B $TERM
-.RS 5
-This variable tells
-.B nmh
-your terminal type.
-.PP
-The environment variable
-.B $TERMCAP
-is also consulted. In particular,
-these tell
-.B scan
-and
-.B mhl
-how to clear your terminal, and how
-many columns wide your terminal is. They also tell
-.B mhl
-how many
-lines long your terminal screen is.
-.RE
-.PP
-.B $MHMTSCONF
-.RS 5
-If this variable is set to a non-null value, it specifies the
-name of the mail transport configuration file to use by
-.BR post ,
-.BR inc ,
-and other programs that interact with the mail transport system,
-instead of the default. See mh-tailor(5).
-.RE
-.PP
-.B $MHMTSUSERCONF
-.RS 5
-If this variable is set to a non-null value, it specifies the name of
-a mail transport configuration file to be read in addition to the
-default. See mh-tailor(5).
-.RE
-.PP
-.B $MHTMPDIR
-.B $TMPDIR
-.RS 5
-These variables are searched, in order, for the directory in which to
-create some temporary files.
-.RE
-.PP
-.B $MHLDEBUG
-.RS 5
-If this variable is set to a non-null value,
-.B mhl
-will emit debugging information.
-.RE
-.PP
-.B $MHPDEBUG
-.RS 5
-If this variable is set to a non-null value,
-.B pick
-will emit a representation of the search pattern.
-.RE
-.PP
-.B $MHWDEBUG
-.RS 5
-If this variable is set to a non-null value,
-.B nmh
-commands that use the
-.BR Alternate\-Mailboxes
-profile entry will display debugging information
-about the values in that entry.
-.RE
-.PP
-.B $PAGER
-.RS 5
-If set to a non-null value, this supersedes the value of
-the default built-in pager command.
-.RE
-.PP
-.B $editalt
-.RS 5
-This is the alternate message.
-.PP
-This is set by