[thelist] html mail dual content

[Mike]

Hello,

I would like to send some html email in both html format as well as 
using a method that sends plain text format as a fall-back format in 
case the recipient doesn't accept html mail. I am using the Mozilla 
suite on the mac version 1.3.1 on OS9.

Is there a technique that can be used so that the plain text variant of 
the email has different content than the html formatted email?

For example, in the html mail, I have a header graphic with some large 
header text rendered as a gif. This looks great in html mail format. But 
what will users see if they do not accept html mail - only the alt text 
of that image? If they don't accept html mail, I would rather they see a 
nice big h1 header instead. Therefore it would seem I need this element 
to be an <img> in the html formatted mail, yet be an h1 in the plain 
text version. Is this possible?

Can my email program do this? I have looked all around this program and 
do not see a method of accomplishing this.

Is there a manual way to do this or do I have to buy a mailign program? 
I would rather avoid buying another program if I don't need to - I don't 
usually send much email, especially html email.

Actually I would prefer to not use html mail but my client would like to 
use it for its direct immediate impact without having to click.

Thank you,

Mike