Here is a listing and description
of Tcl-based mail notification tools.  This is '''not'''
a comprehensive list.  Please don't add last night's hack.
Indeed, many people
have written biffs - it's so trivial to write a simple
one.  But few are truly professional, robust, flexible, etc.  
Here are several that appear to
be worthwhile.

   * [tkbiff]
    :   [http://expect.sourceforge.net/tkbiff/]

    :   GUI: Shows message headers.  Click to show messages.
    :   User-definable action upon new mail: Message-dependent.
    :   OS: Windows, UNIX, MacOS
    :   Access: [IMAP], POP, APOP, SSL, UNIX mbox and maildir.

   * tclbiff
    :   (included with tkbiff - see above)

    :   UI: "You have mail from ..." on stdout.
    :   User-definable action upon new mail: Message-dependent.
    :   OS: UNIX
    :   Access: IMAP, POP, APOP, SSL, UNIX mbox and maildir.
     
   * xbiff2
    :   [http://www.linux-kheops.com/pub/xbiff2/xbiff2GB.html]

    :   GUI: Shows icon for no mail or new mail.
    :   User-defineable action upon new mail: Message-independent.
    :   OS: Windows, UNIX
    :   Access: IMAP, POP, UNIX mbox

   * mbiff
    :   BROKEN LINK - [http://www.gnt.net/%7En5ial/Tcl]

    :   GUI: shows mailbox names containing new mail.
    :   User-definable action upon new mail: No.
    :   OS: UNIX
    :   Access: UNIX mbox
    :   Requires: TclX

   * tkgoodstuff
    :   BROKEN LINK - [http://www-personal.umich.edu/%7Emarkcrim/tkgoodstuff/]

    :   GUI: Shows icon or count of messages in multiple mailboxes. Click to show messages.
    :   User-definable action upon new mail: No.
    :   OS: UNIX
    :   Access: IMAP, UNIX mbox and MH.
    :   Status: Development ceased as of Oct '97.

   * tkpostage
    :   [ftp://ftp.procplace.com/pub/tcl/sorted/packages-7.6/x11/tkpostage-1.3b/tkpostage-1.3b.tar.gz]

    :   GUI: shows count of messages.  Click to show message headers.
    :   User-definable action upon new mail: No.
    :   OS: UNIX
    :   Access: UNIX mbox
    :   Status: appears orphaned, last release: 1.3b, Dec '95

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