[Zope] HTML/PlainText alternate eMails from Zope

[Jonathan Cyr]

Hello,

I want to send eMail from Zope that automatically shows HTML to 
HTML-enabled eMail clients and PlainText otherwise.

It seems to concern a boundary of type? alternate.  I'm not very versed 
in eMail and its protocols.  I was hoping one of the DTML sendmail 
options would achieve this. 

Anyone know how to do this?  Or some keywords for Google other than HTML 
eMail boundary or alternate?

Thanks,

Jon Cyr
cyrj at cyr.info