Something like https://addons.mozilla.org/thunderbird/addon/mail-merge/ ?

not mail merge. stationery email

I don't know what that means, but in general you can invoke Thunderbird from a script in all operating systems and pass arguments like recipient and message content or any attachments over the command like. They still need to be sent manually by hitting the "Send" button in each composition window, though.

Oh, or do you mean using scripts (as in JavaScript) in the message itself? This is disabled in Thunderbird for security reasons.

what it means is i/we create email stationery that we use in emails. when XP was around we had no problem using scripts and now with WLM scripts do not run the way they should. A script shows images, sometimes scrolling. text and the script tells it which font to use. A script can do many things depending on the creativity of the sender. attached is a small example

java is only a part of it but mostly it's just straight forward scripting an VBS/ Virtual Basic Scripting which in some ways but not all is similar to java.

Ok, so Java isn't JavaScript despite the similarity in name (you'd need a plug-in for this while JavaScript is inherent to Thunderbird). Visual Basic is a proprietary language used by Microsoft. Both scripting mechanisms have apparently some vulnerabilities which prompted Mozilla some time ago to disallow it in mail/news content (VBS was never supported). WLM may put some restrictions on what can be done for reasons of security as well, I don't know.

Anyway, scripting in one e-mail client may not run in another e-mail client on the recipient's side. You can work around with animated GIF or APNG images which should be supported in most cases, but in a way represent rather static content.

Maybe someone else will stop by with another suggestion to make it work.

thanks for trying to help.

You are welcome.