# New in the Third Edition

This third edition has been updated for X Release 6 and MH 6.8.3. Other changes include:

- How to use multimedia email with the MIME standard.
- Three chapters, written by Brent Welch, about exmh. Three chapters, by Bill Wohler, about MH-E. The Reference Guide covers exmh and MH-E.
- To make room for the new material, this edition doesn't include printed manual pages. If you don't have online manpages, there are now directions for obtaining them.
- The shell programming chapter is much less tutorial and more specific to MH. The old chapter describing shell programs is gone; the explanations have moved to the chapters where the program would be most useful, and the programming details are in Appendix D.
- There are even more tips for using MH in real applications.
- There are many new sections:
  - Using MIME,
  - Multiple MH Sessions,
  - Reading MIME Messages,
  - Listing MIME Message Parts,
  - MIME Fields in a Header,
  - Editor-next,
  - mhn Editing and automhnproc (later renamed to Building MIME Drafts),
  - Recovering MIME Drafts,
  - Composing and Sending MIME Messages,
  - Forwarding in MIME Format,
  - Working in an MH Directory,
  - Pack Messages into a File,
  - MIME Configuration,
  - International Character Support,
  - The digestcomps File,
  - Periodic Cleanup, Checking, etc. with cron and at,
  - Make Message Bookmarks with mark,
  - Filter Forwarded MIME Messages: mforw,
  - Show MIME Message Parts with showpart,
  - Get Message Number List: msgnums,
  - Settings from the MH Profile,
  - The Original MH Proposal.
- I've incorporated reader comments and suggestions.