EXMH TOUR(1)              INTRO TO EXMH              EXMH TOUR(1)

       exmh - An introduction to the exmh mail user interface.

       This  man  page  provides a quick tour through some of the
       basic features of  exmh  version  2.0,  which  provides  a
       graphical user interface to the MH mail system.

       After  you  read  this  tutorial you should be able to use
       exmh for your basic daily mail reading  needs.   You  will
       learn how to send mail, read mail, manage your messages in
       folders, and adjust some of the exmh features by means  of
       its Preferences user interface.

       There is much more documentation available on-line through
       HTML pages that are viewable from within exmh.  In partic-
       ular.   exmh-use provides information about using the more
       advanced features of exmh.  If you are already an  experi-
       enced  email  user,  you may want to just read the GETTING
       STARTED section here and then skip  to  the  exmh-use  man
       page.  exmh-custom describes how to customize exmh to suit
       your needs.  exmh-ref lists each button and menu entry  in
       exmh and explains what they do.  If you are an experienced
       exmh user, this may be the most useful man page for you.

       A cleaned up version of these man pages appear in the  3rd
       edition  of  the  book  by Jerry Peek, MH & xmh: email for
       users and programmers, which is published  by  O'Reilly  &

       Web versions of the documentation can also be found at


       If  you  are already an MH or xmh user, you can start with
       the examples given in this tour.  If you are a  new  user,
       exmh will set up your basic MH environment.  This includes
       a Mail directory which will have one subdirectory for each
       mail  folder, plus several files that MH mail uses for its
       own purposes.  You also get a ~/.mh_profile file that  has
       user settings for MH and exmh.

       Exmh  uses the regular MH programs to manipulate your mail
       folders and messages.  This means it  is  compatible  with
       command-line use of MH programs, and its actions should be
       familar if you are an experienced MH user.  If you  are  a
       new  MH  user,  then the details of running MH programs is
       hidden behind the graphical interface.   The  MH  programs
       used  by  exmh  are  described towards the end of this man

       When you run exmh for the  first  time  it  checks  a  few
       things  in  your MH profile.  In particular, it depends on
       the Draft-Folder and Unseen-Sequence  profile  components.
       If  these  profile  components  are  not present, a dialog
       appears and exmh can set them up for you.  If you  do  not
       let  exmh  create  them nor set them up by hand, exmh will
       not work properly.  These profile entries are described in
       the exmh-ref man page.

       Exmh  has  been  designed to be very flexible, although it
       will work just fine "out  of  the  box".   The  Preference
       package  used  to  adjust  some of the settings in exmh is
       introduced in this man page, and  some  of  the  important
       settings  are  described  here.   A more complete guide to
       customizing exmh is given in the exmh-custom man page.

       The command to start exmh looks like this:

              exmh -display hostname:0 &
       If your DISPLAY environment variable is set  up  properly,
       then  the -display argument is not needed, and the command
       is even simpler.  You do not need to specify  a  -geometry
       argument,  although  exmh  supports  one.  Instead, simply
       position and size the window using  your  window  manager.
       When  exmh quits, it saves the geometry information so you
       don't have to worry about it.  It does this with  all  its
       top  level  windows, so you can adjust their position once
       and then forget about it.  There  are  more  command  line
       options described in the exmh-ref man page.

       You can add the exmh command to your startup X environment
       by editting your startup file (like .xsession).  You might
       also  want  to add it to the main menu of your window man-
       ager.  The details about this vary from X system to X sys-
       tem,  so  ask  your local X guru for help.  Exmh also sup-
       ports the window manager  session  protocol,  which  means
       that  session-smart  window  managers  will  automatically
       start exmh for you if you quit X when exmh is running.

       This section describes the main parts of the exmh display.
       It  probably  makes sense to run exmh at this point so you
       can follow along.  There are three sets of buttons in  the
       interface, and three main subwindows.

       Main  Buttons.   Along  the  top of the window is a set of
       buttons and menus that apply to exmh  itself.   Quit,  for
       example,  quits exmh.  The Help button pops up a menu, and
       you can select the  entries  there  to  get  more  on-line
       information  about  exmh.   Use  the  left mouse button to
       select the buttons and menus.  A button  will  change  its
       appearence  when you press it, and it will be invoked when
       you release the mouse over the button.  If you  slide  the
       mouse off the button before releasing it, nothing happens.

       Folder Display.  Below the main buttons is the folder dis-
       play  subwindow.  It has a special button for each of your
       top-level folders, and these are called folder labels.  As
       a  new  user you will see two folder labels, one for inbox
       and drafts.  The inbox folder is for  your  new  messages,
       and the drafts folder is for messages you are writing.  If
       you have used MH (or xmh) before, then you may  have  many
       more  folders that will appear in this display.  The mouse
       bindings for folder labels are explained in  the  exmh-use
       man  page.  The Color Legend from the Help menu also tells
       you how the folder labels respond to mouse clicks.

       Folder Cache.  A second folder display called  the  folder
       cache  may  appear  under  the  main folder display.  This
       shows the folder labels for recently used folders.  If you
       only  have  a  few folders this wastes screen real estate.
       The PREFERENCES section near the  end  of  this  man  page
       explains how to turn this off via the Folder Cache prefer-
       ences setting.  If you are a first-time  exmh  user,  Exmh
       tries  to guess if you need this display based on the num-
       ber of folders and nested folders you have.

       Folder Buttons.  The middle set of buttons is  for  opera-
       tions  that apply to folders.  For example, you can create
       a new folder with the New button here.  The More... button
       displays a popup menu with several more operations you can
       apply to folders.  Some of these buttons  will  be  intro-
       duced  in  this  man page.  All of these buttons and menus
       are explained in detail in the exmh-ref man page.

       To the left of the  folder  buttons,  summary  information
       about the current folder is displayed.

       Table  of  Contents.   The middle subwindow of the display
       shows a summary of the messages in the folder.   It  shows
       the message number, the date of the mesage, the subject of
       the message, and, space permitting, the first few words of
       the  message.   Left  click on a line in the table of con-
       tents to view the corresponding message.  The mouse  bind-
       ings  for  the  table  of  contents  are described in more
       detail in the exmh-use man page.

       MH experts: The display in this window comes from both the
       MH  scan  program or MH inc programs, so it is affected by
       the form specification used by these programs.

       Color and Monochrome Highlights.  Both the folder  display
       and  table  of contents windows use highlights to give you
       visual clues about the  state  of  messages  and  folders.
       Your  unread messages are highlighted in the table of con-
       tents and the folders  that  contain  unread  message  are
       highlighted  in  the  folder  display.  Pull down the main
       Help menu and select Color Legend to display a key to  the
       highlights  for your display.  The highlighting is covered
       in more detail later in the exmh-use man page.  The  exmh-
       custom man page tells how you can control the highlighting

       Status Line.  Just below the table of contents is the sta-
       tus  line.   This  has two parts.  The left part shows the
       name of the folder and the message number for the  current
       message, if any.  The right part gives feedback about what
       exmh is doing.  After it displays a message,  the  Subject
       component is displayed there.

       Subwindow  Resize Diamond.  The black diamond to the right
       of the status line is used  to  change  the  size  of  the
       internal  windows.   Press  the first mouse button on this
       target and a horizontal line appears.  Drag it up and down
       to  adjust  the window sizes.  Try dragging it all the way
       to the top and bottom of the exmh window to  see  how  the
       mode changes to adjust different windows.

       Message  Buttons  The bottom row of buttons are for opera-
       tions that apply to the current message.  Several of these
       operations will be introduced in this man page.  The right
       hand button labeled More... brings up a menu with  several
       more advanced message operations.

       Hint:  Many  of  these  message  operations  have keyboard
       shortcuts that make it easy to use exmh with your hands on
       the  keyboard.   Some  of the short-cuts are introduced in
       this man page, and all of them are listed in the  exmh-use
       man page.

       Message  Display.   The bottom subwindow displays the cur-
       rent message, if any.  Some of the less  interesting  mail
       headers start out scrolled off the top of this window.

       A  good  way  to  test  things out is to send a message to
       yourself.  Here are the steps you take to do that:

       1.  Click the Send button, which is in the Message buttons
       in the bottom group.  A new window will open that contains
       the template for your message.  The built-in editor, which
       is  called  sedit,  will  start out with the insert cursor
       positioned at the end of  the  first  empty  header  line.
       Enter your user name after the To: header.  If you want to
       send the message to more than one person, use a  comma  to
       separate the names.

       2.   Position  the  insert cursor on the next header line.
       You can do this a few different ways.  The most direct way
       is  to click the left mouse button where you want the cur-
       sor to be.  There are keyboard  shortcuts,  too.   If  you
       press  <Tab>  the  editor  will take you to the end of the
       next header line.  You can also use the arrow keys or some
       emacs-like  bindings to move the cursor.  <Control-n> goes
       to the next line, <Control-f> moves the cursor  forward  a
       character.   <Control-p>  moves up a line, and <Control-b>
       moves back a character.  The Simple Edit menu entry  shows
       you all the keybindings.

       3.  The next header is the Cc: line.  People listed in the
       Cc: line get a "courtesy" (or "carbon") copy of  the  mes-
       sage.   By  convention,  the  message is primarily for the
       people listed in the To: component, and the people in  the
       Cc:  component  are getting the message "for information."
       In this case, you can leave the Cc: component empty.

       Move the insert cursor to the Subject: line  and  enter  a
       Subject.  The people that receive your message will get an
       idea of what the message is about  from  the  subject,  so
       take  a moment to think of a good one.  For this test, you
       can type something like "exmh test message".

       4.  Make sure the headers are  OK.   In  particular,  make
       sure  there  are  no blank lines in the headers.  The mail
       system treats a blank line as meaning "end-of-headers", so
       you  don't want to prematurely end the header section.  If
       you have a blank line, position the insert  cursor  on  it
       and use Backspace to remove the empty line.

       Position the cursor at the start of the message body.  You
       can use the mouse for this, or you can press  <Tab>  twice
       quickly and the editor will position the cursor correctly.
       When using the default MH message templates, this will  be
       right after the line of all dashes.

       5.   Type  in  your message.  When you type in a long mes-
       sage, the lines will wrap  automatically  at  word  bound-
       aries.   To  get  a  blank  line for paragraph boundaries,
       press <Return>.   The  built-in  editor  supports  several
       editting  commands  that  are  based  on the GNU emacs key
       bindings.  If you select the Simple Edit menu entry  under
       the  main  Bindings  menu, you will bring up a dialog that
       lets you view and edit the key bindings.

       6.  If you are happy with the  message,  you  send  it  by
       pressing  the  Send  button at the top-right corner of the
       window.  The Send button will turn grey,  and  the  window
       will disappear once the message has been sent succesfully.

       If you do not want to send the message,  press  the  Abort
       button instead.  If you want to save the message draft and
       continue to work on it later, press the Save&Quit  button.
       Working on a saved draft message is described in the exmh-
       use man page.

       Send yourself a few messages, or have a friend send you  a
       few  test  messages.   You will use these test messages to
       practice moving around in a folder and deleting  messages.
       Make  one  of the messages pretty long so you can practice
       scrolling through it.

       Finally, try sending mh-mime-sample@online.ora.com a  mes-
       sage.   This  addresses  a program that will return a MIME
       message to you.  Just put this address  in  the  To  field
       with  anything  as  the message body and subject.  Reading
       this message will be described below.

       The selection is dragged out with the left  mouse  button.
       You  can  modify  the  selection  by holding the Shift key
       while pressing the left button.  A double-click  begins  a
       word-oriented selection, and a triple-click begins a line-
       oriented selection.  If you drag a selection off the  bot-
       tom or top of a window the text will be scrolled automati-
       cally and the selection will be extended.

       Paste is done with the middle mouse button.   The  current
       insert  point  is used, not the point at which you middle-
       click.  If you drag the middle mouse button, then the win-
       dow is scrolled instead as described below.  There is also
       a key-binding for paste, which is <Control-y>.  Use  <Con-
       trol-w> or the <Delete> key to delete the selection.

       The  middle mouse button is used for "drag-scrolling".  To
       scroll, simply press the middle mouse button over the text
       and  drag  the  text.   If  you  press  the Shift key, the
       scrolling is faster.  Drag-scrolling  works  in  the  text
       widgets,  for  vertical  scrolling, and the one-line entry
       widgets, for horizontal scrolling.  The text  widgets  are
       used  to  display the folder contents and the current mes-
       sage.  The entry widgets are used in  various  dialogs  in
       order  to enter values.  You can change the scrolling but-
       ton to the right button or to only work with shift-middle.
       Set this up in the Simple Edit Bindings... dialog.

       Buttons and menus are also sensitive to which mouse button
       is pressed.  Only the left button activates a button,  and
       it is the <ButtonRelease> event that is important.  If you
       accidentally move the mouse  off  of  the  button  as  you
       release  it,  nothing will happen.  Don't worry, the wrong
       button will not be invoked.

       Press the left button over a menubutton to   pull  down  a
       menu.   Most of the menus in exmh are distinguished with a
       "..."  in their label, e.g. "More...".  The menu  will  go
       away  when the button is released.  Release the mouse but-
       ton off the menu if you do not want  to  invoke  any  menu
       item.   (In  some  versions  of Tk, the middle button will
       "tear off" a Tk menu.  This is quite handy if you use  the
       menu  often.   To  get the menu to go away, you must click
       the left button over the menubutton.  This  will  reattach
       the  menu  to  the menubutton, and another left click will
       make the menu go away.  In the latest versions of Tk,  the
       first  menu entry is a dashed line that invokes this tear-
       off operation.)

       By now you should have some new mail waiting.   Press  the
       Inc  button  from the middle set of buttons that do Folder
       operations.  This will transfer messages from your  system
       spool file into your inbox folder.  You will hear an audi-
       ble cue if there was new mail, and the table  of  contents
       will be updated to reflect the new messages in your inbox.
       New messages will be underlined (on a monochrome  screen),
       or blue (on a color screen), to indicate that you have not
       read them yet.

       To view the new message, click on its line in the table of
       contents,  or press the Next button in the bottom group of
       buttons.  The message will be displayed in the bottom sub-
       window,  and  the  line  in  the table of contents will be
       highlighted to remind you  which  message  is  being  dis-

       To view the next message, click the Next button.  The key-
       board shortcut for this is the 'n' key.

       The view the previous message, click the Prev button.  The
       keyboard shortcut for this is the 'p' key.

       Scrolling  through messages.  If you get a message that is
       too long to fit into the message window, then the  scroll-
       bar  will  change its appearance to indicate how much text
       is displayed.  The scrollbar is Motif-like.  You can click
       on  the  arrows  at either end to go up and down one line.
       If you click above or below the elevator box you go up and
       down  one  page.  You can drag the elevator box to scroll,

       You can also scroll text windows in exmh by dragging  with
       the middle mouse button.  Press the middle button over the
       text area, not the scrollbar, and hold it down  while  you
       move  the  mouse up or down.  If you hold the shift key at
       the same time, the scrolling is faster.  This works in the
       folder Table of Contents window, too.

       Hint.   The  space bar is a keyboard short-cut that does a
       combination of scrolling and advancing to  the  next  mes-
       sage.   If  the message is long, then space will scroll by
       one screen.  Once you are at the end of the message, space
       will  advance  to the next message, just like the 'n' key.
       You can use the BackSpace key to  scroll  back  through  a

       By  now you should have also received the sample MIME mes-
       sage from mh-mime-sample@online.ora.com.  The MIME message
       has  three parts to it, and these are numbered and labeled
       in the display.  The first part is a multipart/alternative
       content,  which  means  there  are a few different ways to
       view the content.  This is indicated by the message  under
       the  heading  1.  that  there are alternative views of the
       following content.  Exmh will go ahead and display what it
       thinks   is   the   best  alternative,  and  you  see  the
       text/enriched content displayed in part 1.2.  If you  want
       to  see  the  other  alternatives,  then you can press the
       right button over section 1 to get a popup menu with  some

       The  next two parts are an audio clip and a picture in GIF
       format.  The audio clip is handled directly by  exmh,  and
       it displays two active text buttons labeled "Play attached
       audio" and "Save audio file".  Click on  either  of  these
       with the left mouse button.  The part corresponding to the
       image displays a message about what the type is, and  sug-
       gests  that  you press the right mouse button to display a
       menu.  You can always press the right button to get a MIME
       menu that has type-specific options for parts of your mes-
       sage.  If you press the right button over  part  2.,  then
       the popup menu will offer you these choices:

              Decode part as MIME
              Save Hello from the author...
              View using mailcap rule...
              Pass an audio fragment to metamail...
       The  first item is a checkbox menu item that lets you view
       the raw content if you want to.  The  Save...  menu  entry
       displays a file selection box so you can choose a non-tem-
       porary file to store the content.  This same  function  is
       available  through the text button, but not all MIME parts
       displays buttons like this.  The next two  entries  should
       result in the same thing.  They use the mailcap specifica-
       tions to run another program that  displays  the  content.
       In  the  first case, View using mailcap rule..., exmh runs
       the program directly.  In the other case,  Pass  to  meta-
       mail..., the metamail program is run first, and it decodes
       the mailcap file and runs the  external  program.   Again,
       the  text  button labeled "Play attached audio" also plays
       the audio.

       Select one of the messages from  your  friend  that  you'd
       like  to  answer.  Press the left button over the Reply...
       menu button.  A menu with a few entries will be displayed.
       Select  the  Reply  to  sender  menu entry by dragging the
       mouse down to that entry and letting up over it.  The menu
       entry has a <Key-r> in it, which means that you could also
       press the 'r' key to invoke this function.

       This time the built-in editor will open a  window  with  a
       message  that  is  partly  filled in.  All the headers are
       initialized based on the header components from the origi-
       nal message.  The built-in editor will automatically posi-
       tion the cursor at the begining of the message body.   You
       can  enter your reply message like you did with the previ-
       ous messages.  You should  also  double-check  the  header
       components.   In this case, add yourself to the Cc: compo-
       nent so you will get a copy of the  reply  message.   When
       you  are  done, press the Send button in the editor window
       to send the message.

       There are a number of ways to control the format  of  your
       reply  messages.   The MH repl command has several format-
       ting options, and because exmh uses repl  to  set  up  the
       reply  message, you can customize your reply format.  Exmh
       lets you define several variations on reply and  add  them
       to  the Reply... menu.  This is described in the exmh-cus-
       tom man page.

       It should not take long for you to get  the  copy  of  the
       reply message.  Wait a minute or so and press the Inc but-
       ton.  The keyboard short-cut for Inc is the 'i' key.

       Before we go on to more things you can do  with  messages,
       we need to talk about selecting multiple messages at once.
       Several of the message operations in exmh can operate on a
       set  of  messages.   You can manually select multiple mes-
       sages by using the mouse, or you can select messages based
       on their content.

       Using the Mouse.  To select messages with the mouse, press
       the left button and then drag out a selection.  This  will
       select  a  contiguous  range of messages.  If the messages
       you want to select are not so nicely  organized,  you  can
       make  a  disjoint  selection by holding down the Shift key
       while making your selection.  This adds  new  messages  to
       the  selection.   If  you shift-click on a message that is
       already selected, then it becomes unselected.  If you need
       to select a lot of messages, simply drag the mouse off the
       top or bottom of the window.  It will be scrolled automat-
       ically and the selection will be extended.

       The Search... menu has several operations for finding mes-
       sages and finding text within a message.  There is also  a
       help entry that explains searching in more detail.

       If  you select "Find in message body" or "Find in table of
       contents" a small search dialog appears.  Enter the search
       string  and  use the Next or Prev buttons to find the next
       match.  When you are searching over the table of contents,
       you can select All to select all matching messages.

       The  other  way  to  search  a  folder  is  with  "Pick by
       attributes".  The MH pick program is used  to  search  the
       current  folder  for messages that match mail headers like
       From or Subject.  You can  build  up  boolean  expressions
       among search criteria.  This is a much more general search
       mechanism than the "Find in table of contents"  operation.

       Get  started  in  the  Pick dialog by pressing the "Choose
       pick  attribute"  button.   A  menu  of  attribute   types
       appears,  including  the  Subject, From, To, and Cc header
       components.  You can type a regular expression pattern  in
       these  entries to search for messages that have a matching
       header component.

       The Before and After attributes are dates.  You  can  find
       all  messages  before or after a given date by using these
       fields.  You can specify dates as mm/dd/yy.   Be  sure  to
       include  the  year.   Dates  can  also  be  keywords  like
       "today", "yesterday", "tomorrow", and any day of the  week
       ("Sunday", "Monday", and so on.)

       The  Search  attribute  is used to search for something in
       the body of  a  message.   This  will  run  little  slower
       because  pick  must read through all of your messages, not
       just their headers.

       If you select more than one attribute, pick finds messages
       that  match  all the criteria.  In otherwords, it does the
       logical and of the search criteria.  If you want to search
       for  this or that, then you need to press the Or button in
       the dialog.  This adds another set of fields to  the  dia-
       log,  and  pick will search for everthing that matches the
       first set or matches the second set.

       The "Add to Sel" checkbutton should be set before  you  do
       the  search.   This  controls  whether or not the selected
       messages are added to any existing selection.

       Finally, use the "Pick" button to do the search.  Once the
       search  has  completed you can perform a few operations on
       the selection.  You can  delete  and  refile  messages  as
       described later.  You can also display a new table of con-
       tents that only contains the selected messages.   Use  the
       "New FTOC" button for this.  You can also clear the unseen
       state of the messages with the "Mark Seen" button.

       The "Clear" button resets the fields.

       The two entries in the  dialog  are  used  to  control  MH
       sequences.  The only sequence exmh really supports well is
       the "unseen" sequence, although you can define  up  to  10
       sequences in each folder.

       If you use New FTOC to get a new scan listing, it would be
       better if it appeared in a new window,  but  currently  it
       replaces  the  table of contents.  You can move around and
       manipulate messages in this table of  contents.   However,
       if  you  do another pick, it will only find things in this
       limited table of contents, not the  whole  folder.   (Yes,
       this  is a bug .)  Use the Rescan Folder menu entry in the
       folder More... menu to get a complete folder listing.

       If you want to send someone a copy of a  message  or  mes-
       sages  that  you  have  received,  use the Forward message
       operation.  Select the messages as described in the previ-
       ous  section, then press the Forward button.  The keyboard
       short-cut for forward is the 'f' key.

       The message template will have a copy of the selected mes-
       sages.   You  fill  in the headers, and you can also add a
       short message before the start of the forwarded  messages.
       When you are done, press Send to forward the messages.

       After you have read a message, you might want to remove it
       to keep your mail folders tidy.  Exmh uses  two  steps  to
       remove  mail.   In  the  first  step you mark a message as
       being deleted.  In the second step you commit  the  opera-
       tions  on  all  marked messages.  It turns out that delete
       just renames your message files.  They will survive  until
       you  get another message by the same number and remove it,
       too.  In addition, exmh has  a  "Purge  Folder"  operation
       that  removes  these renamed files if they are more than a
       week old.

       The Delete operation applies to the  current  message,  or
       you  can also select a range of messages by dragging out a
       selection in the table of contents.  You  can  delete  the
       current  message(s)  by  pressing  the Delete button.  The
       keyboard short-cut is the 'd' key.  The deleted message(s)
       will  be highlighted after the delete operation so you can
       easily see the state of  the  message.   On  a  monochrome
       screen,  a  cross hatching will be drawn through the table
       of contents line for the message.  On a color screen,  the
       table of contents line will get a dark grey background.

       After you mark a message for delete, you are automatically
       advanced to the next message.  This makes it  easy  to  go
       through your folder and clean it up.  Click 'd' to delete,
       or click 'n' to leave it alone.

       Hint.  If you are really in a hurry, use 'D'  and  'N'  as
       your  keyboard short-cuts.  This prevents the next message
       from being displayed, which can be slow for complex multi-
       media messages.

       When  you  are ready to commit the pending delete actions,
       press the Commit button.  The keyboard shortcut for commit
       is <Control-Return>.

       If  you decide you do not want to delete a message you can
       unmark it.  Use the Unmark (Undo) menu entry that is under
       the message More... menu.  The unmark operation applies to
       the current message or messages, so you have to select the
       messages  to  unmark  first.   The  keyboard short-cut for
       unmark is 'u'.

       Hint.  The minus, '-', keyboard shortcut takes you to  the
       previous  message,  even if it has been marked for delete.
       Ordinarily the Prev operation, and the 'p'  short-cut  for
       it, will skip over marked messages.

       Press  the  Quit button to leave exmh.  It will take a few
       moments to close down because it saves some state informa-
       tion before quitting.  The Quit button will grey out after
       you click it, and you will see a few status messages as it
       shuts itself down.

       Try  out  the Preferences by turning off the folder cache.
       This just takes up display space if you  don't  have  many
       folders.   If you have lots of nested folders, though, you
       might even want to make this display bigger!

       Click the Preference button, which brings up a dialog that
       has  buttons for several of the modules that make up exmh.
       Click on the Folder Cache button to bring up  the  prefer-
       ence  items  that  control the folder cache.  In this case
       there are just two items: the number of lines of labels in
       the cache, and the names of folders that are always in the
       cache.  Click in the first field and  backspace  over  the
       default  value  of  1.   Type  in  0  instead,  and  press
       <Return>.  Voila!  The folder cache disappears.

       If you like this setting, press Save one the main  Prefer-
       ence dialog and your changes will be saved to a file named
       ~/.exmh-defaults.  Press Reset if you want  to  undo  your
       changes.  You should be a little careful here, because you
       are allowed to Dismiss the preference dialog without  sav-

       Another  useful preference item to set is under Background
       Processing.  You can arrange for exmh to periodically  run
       inc  so  your  messages are automatcially transferred into
       your inbox.  The advantage  of  doing  this  is  that  the
       folder  label  highlighting works best this way.  Unfortu-
       nately, exmh does not give you any visual clues when  mail
       is only waiting in your system spool file.

       More details about the Preferences dialog are given in the
       exmh-use man page, and an overview of the various  prefer-
       ence sections is given in the exmh-custom man page..

       MH  is  a  collection of UNIX programs that store, manipu-
       late, and display your mail. MH originated from RAND,  and
       it  is now in the public domain.  Exmh uses these programs
       to do all the hard work, while it concentrates on the user

       You  can  use the MH programs to read your mail.  Run them
       from the UNIX command line like you would cd, ls,  cc,  or
       make.  They are useful when you are connecting over a slow
       line or cannot run exmh for some other reason.   For  more
       details,  there  are individual man pages for each MH pro-
       gram, plus one overview man page called MH.   Below  is  a
       short summary of the main MH programs used by exmh.

       folder Query or set the current folder.

       inc    Incorporate  mail  from your system spool file into
              your folders.

       scan   Display a listing of a mail folder.

       show   Display a mail message.

       next   Display the next mail message.  (Exmh doesn't actu-
              ally run this.)

       prev   Display  the  previous mail message.  (Exmh doesn't
              actually run this.)

       rmm    Delete a mail message.

       refile Move a message into another mail folder.

       repl   Reply to a mail message

       forw   Forward one or more mail messages.

       comp   Compose a new mail message.

       MH keeps track of the current folder and the current  mes-
       sage in between uses of these MH programs.  For example:

              % scan +inbox unseen
              1713  04/14 foote.PARC@xerox.  Have you started blasting cdroms yet?<<Probably.
              1715  04/14 FlashBack Publish  1232: Tactix Introduces Break through in Unix Ad
              1716  04/14 FlashBack Publish  1234: CERT Advisory - NCSA HTTP Daemon for UNIX<
              1717 M04/15 To:welch           PGP test<<-----BEGIN PGP MESSAGE----- Version: 2
              1718 M04/17 flash@flashback.c  mime-flashback-w MIME FlashBack April 13th, 1995
              1719 -04/16 Bill Wohler        Notes for MH Chapters 20-22<<Brent, I have been
              1720+-04/17 "Allen R. Carl"    Re: Tabs<<Brent, where is this -tabs resource se
              % show 1717
              (Message 1717 displayed)
              % next
              (Message 1718 displayed)
              % rmm
              (Message 1718 deleted)
              % repl 1717
              (Set up template for reply to message 1717, invoke editor)

       Each  user  has  a .mh_profile file that stores general MH
       settings as well as per-command settings.  Each line has a
       key, and a value.  For example, your mail directory is set
       with the Path profile entry:

              Path: Mail

       If your old mail system uses that directory already,  just
       edit  your .mh_profile to change the name used for your MH
       mail folders.

       This man page should get you started with  exmh.   If  you
       decide  you  want  to know more about it, here are some of
       the features described in the other exmh man pages.

       MIME support.  Exmh can display MIME (Multipurpose  Inter-
       net Mail Extensions) messages, either directly or with the
       help of the metamail package.  The  built-in  editor  lets
       you  compose  enriched  text  messages and insert files as
       parts of a multipart message.

       Mail Folders.  You can create other mail folders  to  hold
       messages about certain topics or from certain people.  You
       can create a hierarchical  arrangement  of  folders,  just
       like the hierarchical directory structure of the file sys-
       tem.  The folder display supports  these  nested  folders,
       and it allows you to nest folders to any depth.

       Mail  Filtering.   Mail  filtering lets you sort mail into
       different folders before you read it.  If you get lots  of
       mail,  this  is  a great way to avoid plowing through junk
       mail just to get  your  important  messages.   The  folder
       labels  are  highlighted  to  indicate  which folders have
       unread mail in them.

       Facesaver  bitmap  display.   If  you  have  a   facesaver
       database  on your system, exmh displays the bitmap face of
       the person that sent the current message (or their organi-

       Background  processing.  You can set exmh to run inc peri-
       odically, check for new mesages arriving asynchronously in
       folders,  run  the MH msgchk program, or count up the mes-
       sages in your mail spool file.

       Editor interface.  You can hook exmh to your favorite edi-
       tor  using  the  exmh-async script.  Or, Tcl-based editors
       such as mxedit can interact with exmh directly.

       Keybinding User Interface.  You can define new  key  bind-
       ings for Tcl commands that are part of the implementation.

       Aliases User Interface.  A browser  for  your  MH  aliases
       lets  you  define new aliases and insert aliases into mail

       Pretty Good Privacy (PGP).  If you have PGP, you  can  use
       it  from exmh to digitally sign, encrypt, and decrypt mes-

       User Programming.  If  the  preference  settings  are  not
       enough  for  you, you can program exmh more directly.  You
       can define new buttons and menus and add new Tcl  code  to
       its implementation.

       exmh-use, exmh-ref, exmh-custom, mh

       Brent Welch, <welch@acm.org>

       To  Xerox PARC/CSL, for supporting this work initially, to
       Sun Microsystems Laboratories for continuing the  support,
       and to all the exmh users that contributed ideas and code.

Exmh 2.0                 December 3, 1996                       1