Open email with template, but do not send

Open email with template, but do not send

Hey guys, 

I'm hoping this is achievable, and I don't see why it can't be achieved; all I'm looking to do is create a script for a link/button that will open a new email with an existing template pre-populated in the message part of the email already, but NOT send it.

It doesn't matter if the html template content has to form part of the script - I'm happy to do that.

I know this can already be achieved via script however as far as I can see there is not way to stop the email from sending. I'm also aware that I can just use the OpenURL function to open the "Send Email" window, but this would then require the user to open and select the correct template (of which we have many, all similar but with key difference depending on the situation), which is not ideal.

Is there any method of achieving this?

Thank you,

Josh