[Oberon] Format of this message?

[dukeofperl at ml1.net]

I just added a "style" to the email template that popped up.  Anybody know how to make it persistant?  I want to wordwrap at 70 characters, e.g.

 I'm also going to see if my sig is automatically appended . Sorry for the noise!
 -- 
>Duke
Turner Valley, Alberta, Canada
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