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Most of the world does not use an HTML-enabled email client, so you
may want to make Netscape's "Plain Text editor" the default.  To 
change Netscape's default editor (for Newsgroup postings AND email 
in Messenger):

(see ftp://asavage.fdns.net/hosting/NN_PlainText01.jpg)
* Select Edit->Preferences,
* In the left pane, Select the "+" next to "Mail & Newsgroups" to
expand it,
* In the left pan, Select "Formatting",
* On the right side, top, choose "Use the plain text editor . . . ".

To leave the default editor to be HTML, but change an individual email 
or newsgroup posting to plain text:

(see ftp://asavage.fdns.net/hosting/NN_PlainText02.jpg)
* Select the tab as shown in the picture above,
* Then, in the "Format" listbox, Select "Plain Text only".
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